1.
Portuguese people
–
Portuguese people are an ethnic group indigenous to the country of Portugal, in the west of the Iberian Peninsula in Southwestern Europe. Their language is Portuguese, and their predominant religion is Christianity, Portuguese people were a key factor to the Age of Exploration, discovering several lands unknown to the Europeans in the Americas, Africa, Asia and Oceania, helping to pave the way for Globalization. There are around 10 million native Portuguese in Portugal, out of a population of 10.34 million. A small minority of about 15,000 speak the Mirandese language, in the municipalities of Miranda do Douro, Vimioso, all of the speakers are bilingual with Portuguese. An even smaller minority of no more than 2,000 people speak Barranquenho, some people from the former colonies have been migrating to Portugal since the 1900s. More recently, a number of Slavs, especially Ukrainians, Moldovans, Romanians and Russians. There is also a Chinese minority, in addition, there is a small minority Gypsies of about 40,000 people, Muslims about 34,000 people and an even smaller minority of Jews of about 5,000 people. Between 1886 and 1966, Portugal lost to more than any West European country except Ireland. From the middle of the 19th century to the late 1950s, about 40 million Brazilians have relatively recent Portuguese background, due to massive immigration in the late 19th and early 20th centuries. About 1.2 million Brazilian citizens are native Portuguese, significant verified Portuguese minorities exist in several countries. Portuguese Sephardic Jews are also in Israel, the Netherlands, the United States, France, Venezuela, Brazil, in Brazil many of the colonists were also originally Sephardic Jews, who, converted, were known as New Christians. In the United States, there are Portuguese communities in New Jersey, the New England states, in the Pacific, Hawaii has a sizable Portuguese element that goes back 150 years, Australia and New Zealand also have Portuguese communities. Canada, particularly Ontario, Quebec and British Columbia, has developed a significant Portuguese community since 1940, argentina and Uruguay had Portuguese immigration in the early 20th century. So has Chile where an estimated 50,000 descendants live, an estimated 800,000 Portuguese returned to Portugal as the countrys African possessions gained independence in 1975, after the Carnation Revolution, while others moved to Brazil and South Africa. Vincent and the Grenadines, Trinidad and Tobago, Guyana, Equatorial Guinea, in 1989 some 4,000,000 Portuguese were living abroad, mainly in France, Germany, Brazil, the United Kingdom, South Africa, Canada, Venezuela, and the United States. Portuguese constitute 13% of the population of Luxembourg, in areas such as Thetford and the crown dependencies of Jersey and Guernsey, the Portuguese form the largest ethnic minority groups at 30% of the population, 20% and 3% respectively. The British capital London is home to the largest number of Portuguese people in the UK, with the majority being found in the boroughs of Kensington and Chelsea, Lambeth and Westminster. The Portuguese diaspora communities still are very attached to their language, their culture and their national dishes, in colonial times, over 700,000 Portuguese settled in Brazil, and most of them went there during the gold rush of the 18th century
Portuguese people
–
Portuguese men playing
Fado
Portuguese people
–
Distribution of
R1a (purple) and
R1b (red). See also
this map for distribution in Europe.
Portuguese people
–
Sign and frame about Portuguese immigration inside one
subway station in
Toronto,
Ontario,
Canada.
Portuguese people
–
Passport of an immigrant from the
Braga District to Brazil
2.
El Jadida
–
El Jadida is a port city on the Atlantic coast of Morocco, located 106 km south of the city of Casablanca in the region of Doukkala-Abda and the province of El Jadida. It has a population of 194,934, from the sea, El Jadidas old city has a very un-Moorish appearance, it has massive Portuguese walls of hewn stone. According to UNESCO, the most important buildings from the Portuguese period are the cistern, the city, and particularly its neighboring town of Sidi Bouzid, becomes extremely busy in the summer season with an influx of mainly Moroccan holiday-makers. Nearby is the resort complex of Mazagan, which attracts the Moroccan elite as well as many international visitors from the Persian Gulf as well as from Europe. Mazagan has a course designed by Gary Player, casino, nightclub. Between Mazagan and El Jadida is the Pullman Hotel, attached to which is Royal Golf El Jadida, the presence of nearby ports and factories is responsible for the pollution of El Jadidas beaches. At present, the main exports are beans, almonds, maize, chickpeas, wool, hides, wax. It imports cotton, sugar, tea and rice, the city is expanding as of 2014, partly as a result of increased activity at the nearby Jorf Lasfar port and industrial area. The underground chamber, measuring 34 meters by 34 meters, was constructed with five rows of five stone pillars and its visual qualities are such that several movies have been filmed within the cavernous space, of which Orson Welles Othello is the best known internationally. The design of the Fortress of Mazagan is a response to the development of artillery in the Renaissance. The star form of the fortress measures c 250m by 300m, the slightly inclined, massive walls are c 8m high on average, with a thickness of 10m, enclosing a patrolling peripheral walkway 2m wide. At the present time the fortification has four bastions, the Angel Bastion in the east, St Sebastian in the north, St Antoine in the west, and the Holy Ghost Bastion in the south. The fifth, the Governor’s Bastion at the entrance, is in ruins. Numerous colonial-era Portuguese cannons are still positioned on top of the bastions, a ditch, c 20m wide and 3m deep, formerly filled with seawater, surrounded the fort. During the time of the French Protectorate the ditch was filled in earth and a new entrance gate was opened leading to the main street, the Rua da Carreira. Along this street are situated the best preserved buildings, including the Catholic Church of the Assumption. El Jadida, previously known as Mazagan, was seized by the Portuguese in 1502, the Portuguese built a citadel in 1514, and a larger fortification in 1541. The Portuguese would continue to control the city until 1769, when they abandoned Mazagão, upon their forced departure, the Portuguese destroyed the Governors Bastion and evacuated to the Portuguese colony of Brazil, where they founded a new settlement called Nova Mazagão
El Jadida
–
Panorama of El Jadida
El Jadida
–
Market, El Jadida, 2012
El Jadida
–
Manueline cistern of the El Jadida fortress.
El Jadida
–
Ramparts of El Jadida
3.
Morocco
–
Morocco, officially known as the Kingdom of Morocco, is a sovereign country located in the Maghreb region of North Africa. Geographically, Morocco is characterized by a mountainous interior, large tracts of desert. Morocco has a population of over 33.8 million and an area of 446,550 km2 and its capital is Rabat, and the largest city is Casablanca. Other major cities include Marrakesh, Tangier, Tetouan, Salé, Fes, Agadir, Meknes, Oujda, Kenitra, a historically prominent regional power, Morocco has a history of independence not shared by its neighbours. Marinid and Saadi dynasties continued the struggle against foreign domination, the Alaouite dynasty, the current ruling dynasty, seized power in 1666. In 1912 Morocco was divided into French and Spanish protectorates, with a zone in Tangier. Moroccan culture is a blend of Arab, indigenous Berber, Sub-Saharan African, Morocco claims the non-self-governing territory of Western Sahara as its Southern Provinces. Morocco annexed the territory in 1975, leading to a war with indigenous forces until a cease-fire in 1991. Peace processes have thus far failed to break the political deadlock, Morocco is a constitutional monarchy with an elected parliament. The King of Morocco holds vast executive and legislative powers, especially over the military, foreign policy, the king can issue decrees called dahirs which have the force of law. He can also dissolve the parliament after consulting the Prime Minister, Moroccos predominant religion is Islam, and the official languages are Arabic and Tamazight. The Moroccan dialect, referred to as Darija, and French are also widely spoken, Morocco is a member of the Arab League, the Union for the Mediterranean, and the African Union. It has the fifth largest economy of Africa, the full Arabic name al-Mamlakah al-Maghribiyyah translates to Kingdom of the West, although the West in Arabic is الغرب Al-Gharb. The basis of Moroccos English name is Marrakesh, its capital under the Almoravid dynasty, the origin of the name Marrakesh is disputed, but is most likely from the Berber words amur akush or Land of God. The modern Berber name for Marrakesh is Mṛṛakc, in Turkish, Morocco is known as Fas, a name derived from its ancient capital of Fes. The English name Morocco is an anglicisation of the Spanish Marruecos, the area of present-day Morocco has been inhabited since Paleolithic times, sometime between 190,000 and 90,000 BC. During the Upper Paleolithic, the Maghreb was more fertile than it is today, twenty-two thousand years ago, the Aterian was succeeded by the Iberomaurusian culture, which shared similarities with Iberian cultures. Skeletal similarities have been suggested between the Iberomaurusian Mechta-Afalou burials and European Cro-Magnon remains, the Iberomaurusian was succeeded by the Beaker culture in Morocco
Morocco
–
Berber Roman King
Ptolemy of Mauretania.
Morocco
–
Flag
Morocco
–
Roman mosaic of Diana in
Volubilis.
Morocco
–
Morocco, Safi ceramic vessel Jobbana
4.
Carthage
–
Carthage was the centre or capital city of the ancient Carthaginian civilization, on the eastern side of the Lake of Tunis in what is now the Tunis Governorate in Tunisia. The city developed from a Phoenician colony into the capital of an empire dominating the Mediterranean Sea during the first millennium BC, the apocryphal queen Dido is regarded as the founder of the city, though her historicity has been questioned. According to accounts by Timaeus of Tauromenium, she purchased from a tribe the amount of land that could be covered by an oxhide. The ancient city was destroyed by the Roman Republic in the Third Punic War in 146 BC then re-developed as Roman Carthage, the Roman city was again occupied by the Muslim conquest of the Maghreb, in 698. The archaeological site was first surveyed in 1830, by Danish consul Christian Tuxen Falbe, Excavations were performed in the second half of the 19th century by Charles Ernest Beulé and by Alfred Louis Delattre. The Carthage National Museum was founded in 1875 by Cardinal Charles Lavigerie, the open-air Carthage Paleo-Christian Museum has exhibits excavated under the auspices of UNESCO from 1975 to 1984. The Latin Carthāgō, Carthāginis is an n-stem, as reflected in the English adjective Carthaginian, the Latin adjective pūnicus, a variant of the word Phoenician, is reflected in English in some borrowings from Latin—notably the Punic Wars and the Punic language. The Modern Standard Arabic form قرطاج is an adoption of French Carthage, Carthage was built on a promontory with sea inlets to the north and the south. The citys location made it master of the Mediterraneans maritime trade, all ships crossing the sea had to pass between Sicily and the coast of Tunisia, where Carthage was built, affording it great power and influence. Two large, artificial harbors were built within the city, one for harboring the citys massive navy of 220 warships, a walled tower overlooked both harbors. The city had walls,37 km in length, longer than the walls of comparable cities. Most of the walls were located on the shore, thus could be less impressive, the 4.0 to 4.8 km of wall on the isthmus to the west were truly massive and were never penetrated. The city had a huge necropolis or burial ground, religious area, market places, council house, towers, and a theater, roughly in the middle of the city stood a high citadel called the Byrsa. Carthage was one of the largest cities of the Hellenistic period and was among the largest cities in preindustrial history. Whereas by AD14, Rome had at least 750,000 inhabitants and in the following century may have reached 1 million, according to the not always reliable history of Herodian, Carthage rivaled Alexandria for second place in the Roman empire. On top of Byrsa hill, the location of the Roman Forum, the neighborhood, with its houses, shops, and private spaces, is significant for what it reveals about daily life there over 2100 years ago. The remains have been preserved under embankments, the substructures of the later Roman forum, the housing blocks are separated by a grid of straight streets about 6 m wide, with a roadway consisting of clay, in situ stairs compensate for the slope of the hill. The habitat is typical, even stereotypical, in some places, the ground is covered with mosaics called punica pavement, sometimes using a characteristic red mortar
Carthage
–
Thermes of Antoninus Pius at Carthage
Carthage
–
EO-1
Carthage
Carthage
–
Roman
trireme mosaic from Sousse,
Sousse Archaeological Museum,
Sousse.
5.
Pavurallakonda
–
It is located at a height of about 150 meters above mean sea level. Pavurallakonda consists of a ruined hill-top Buddhist monastic complex probably witnessed human habitation from 3rd Century BCE to 2nd century CE and it is one of the Largest Buddhist Monasteries of North Coastal Andhra Region. Hinayana Buddhism may have flourished at this hill-top site, initial Excavation of this site yielded many relics. Two Brahmi label inscriptions, foundations of Viharas, circular chaityas, votive stupas, coins, polished ware, beads etc. were recovered from the site by the state archaeology Department of Andhra Pradesh. Nearly Sixteen rock-cut cisterns are carved on the hill for the storage of rain water, excavations and Restoration Program are under progress at Pavurallakonda. The Gosthani River flows close by this site and this will not only pave the way for steady flow of funds but also generate employment opportunities for the locals. The origin of the name of this site needs clarification yet
Pavurallakonda
–
Yaksha Sculpture at Pavurallakonda near
Bheemunipatnam
Pavurallakonda
–
Holy relic sites map of Andhra Pradesh
Pavurallakonda
–
Remnants of a
Buddhist Stupa at Pavurallakonda
Pavurallakonda
–
Buddhist Rockcut Cistern at pavurallakonda
6.
India
–
India, officially the Republic of India, is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and it is bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast. It shares land borders with Pakistan to the west, China, Nepal, and Bhutan to the northeast, in the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives. Indias Andaman and Nicobar Islands share a border with Thailand. The Indian subcontinent was home to the urban Indus Valley Civilisation of the 3rd millennium BCE, in the following millennium, the oldest scriptures associated with Hinduism began to be composed. Social stratification, based on caste, emerged in the first millennium BCE, early political consolidations took place under the Maurya and Gupta empires, the later peninsular Middle Kingdoms influenced cultures as far as southeast Asia. In the medieval era, Judaism, Zoroastrianism, Christianity, and Islam arrived, much of the north fell to the Delhi sultanate, the south was united under the Vijayanagara Empire. The economy expanded in the 17th century in the Mughal empire, in the mid-18th century, the subcontinent came under British East India Company rule, and in the mid-19th under British crown rule. A nationalist movement emerged in the late 19th century, which later, under Mahatma Gandhi, was noted for nonviolent resistance, in 2015, the Indian economy was the worlds seventh largest by nominal GDP and third largest by purchasing power parity. Following market-based economic reforms in 1991, India became one of the major economies and is considered a newly industrialised country. However, it continues to face the challenges of poverty, corruption, malnutrition, a nuclear weapons state and regional power, it has the third largest standing army in the world and ranks sixth in military expenditure among nations. India is a constitutional republic governed under a parliamentary system. It is a pluralistic, multilingual and multi-ethnic society and is home to a diversity of wildlife in a variety of protected habitats. The name India is derived from Indus, which originates from the Old Persian word Hindu, the latter term stems from the Sanskrit word Sindhu, which was the historical local appellation for the Indus River. The ancient Greeks referred to the Indians as Indoi, which translates as The people of the Indus, the geographical term Bharat, which is recognised by the Constitution of India as an official name for the country, is used by many Indian languages in its variations. Scholars believe it to be named after the Vedic tribe of Bharatas in the second millennium B. C. E and it is also traditionally associated with the rule of the legendary emperor Bharata. Gaṇarājya is the Sanskrit/Hindi term for republic dating back to the ancient times, hindustan is a Persian name for India dating back to the 3rd century B. C. E. It was introduced into India by the Mughals and widely used since then and its meaning varied, referring to a region that encompassed northern India and Pakistan or India in its entirety
India
–
Flag
India
–
The granite
tower of
Brihadeeswarar Temple in
Thanjavur was completed in 1010 CE by
Raja Raja Chola I.
India
–
Writing the will and testament of the Mughal king court in Persian, 1590–1595
7.
Basilica Cistern
–
The Basilica Cistern, is the largest of several hundred ancient cisterns that lie beneath the city of Istanbul, Turkey. The cistern, located 500 feet southwest of the Hagia Sophia on the peninsula of Sarayburnu, was built in the 6th century during the reign of Byzantine Emperor Justinian I. The name of this subterranean structure derives from a public square on the First Hill of Constantinople. Before being converted to a cistern, a great Basilica stood in its place, built between the 3rd and 4th centuries during the Early Roman Age as a commercial, legal, the basilica was reconstructed by Illus after a fire in 476. Ancient texts indicated that the basilica contained gardens, surrounded by a colonnade, according to ancient historians, Emperor Constantine built a structure that was later rebuilt and enlarged by Emperor Justinian after the Nika riots of 532, which devastated the city. Historical texts claim that 7,000 slaves were involved in the construction of the cistern. This cathedral-size cistern is a chamber approximately 138 metres by 64.6 metres – about 9,800 square metres in area – capable of holding 80,000 cubic metres of water. The ceiling is supported by a forest of 336 marble columns, each 9 metres high, the capitals of the columns are mainly Ionic and Corinthian styles, with the exception of a few Doric style with no engravings. One of the columns is engraved with raised pictures of a Hens Eye, slanted braches and this column resembles the columns of the Triumphal Arch of Theodosius I from the 4th century, erected in the Forum Tauri Square. Ancient texts suggest that the tears on the column pay tribute to the hundreds of slaves who died during the construction of the Basilica Cistern and they are carved and engraved out of various types of marble and granite. Fifty-two stone steps descend into the entrance of the cistern, the cistern is surrounded by a firebrick wall with a thickness of 4 metres and coated with a waterproofing mortar. The Basilica Cisterns water came from the Eğrikapı Water Distribution Center in the Belgrade Forest and it traveled through the 971-metre-long Valens Aqueduct, and the 115. 45-metre-long Mağlova Aqueduct, which was built by the Emperor Justinian. The cistern has the capacity to store 100,000 tons of water and it is virtually empty today with only a few feet of water lining the bottom. The weight of the lies on the columns by means of the cross-shaped vaults. The Basilica Cistern has undergone several restorations since its foundation, the first of the repairs were carried out twice during the Ottoman State in the 18th century during the reign of Ahmed III in 1723 by the architect Muhammad Agha of Kayseri. The second major repair was completed during the 19th century during the reign of Sultan Abdulhamid II, cracks to masonry and damaged columns were repaired in 1968, with additional restoration in 1985 by the Istanbul Metropolitan Museum. During the 1985 restoration,50,000 tons of mud were removed from the cisterns, the cistern was opened to the public in its current condition on 9 September 1987. In May 1994, the cistern underwent additional cleaning, located in the northwest corner of the cistern, the bases of two columns reuse blocks carved with the visage of Medusa
Basilica Cistern
–
Basilica Cistern
Basilica Cistern
–
The second Medusa head pillar
Basilica Cistern
–
The Hen's Eye column.
Basilica Cistern
–
The sideways Medusa, rotated 90 degrees.
8.
Justinian I
–
Justinian I, traditionally known as Justinian the Great and also Saint Justinian the Great in the Eastern Orthodox Church, was a Byzantine emperor from 527 to 565. During his reign, Justinian sought to revive the empires greatness, because of his restoration activities, Justinian has sometimes been called the last Roman in modern historiography. This ambition was expressed by the recovery of the territories of the defunct western Roman Empire. His general, Belisarius, swiftly conquered the Vandal kingdom in North Africa, the prefect Liberius reclaimed the south of the Iberian peninsula, establishing the province of Spania. These campaigns re-established Roman control over the western Mediterranean, increasing the Empires annual revenue by over a million solidi, during his reign Justinian also subdued the Tzani, a people on the east coast of the Black Sea that had never been under Roman rule before. A still more resonant aspect of his legacy was the rewriting of Roman law, the Corpus Juris Civilis. His reign also marked a blossoming of Byzantine culture, and his building program yielded such masterpieces as the church of Hagia Sophia, a devastating outbreak of bubonic plague in the early 540s marked the end of an age of splendour. Justinian was born in Tauresium around 482, a native speaker of Latin, he came from a peasant family believed to have been of Illyro-Roman or Thraco-Roman origins. The cognomen Iustinianus, which he later, is indicative of adoption by his uncle Justin. During his reign, he founded Justiniana Prima not far from his birthplace and his mother was Vigilantia, the sister of Justin. Justin, who was in the guard before he became emperor, adopted Justinian, brought him to Constantinople. As a result, Justinian was well educated in jurisprudence, theology, Justinian served for some time with the Excubitors but the details of his early career are unknown. Chronicler John Malalas, who lived during the reign of Justinian, tells of his appearance that he was short, fair skinned, curly haired, round faced, another contemporary chronicler, Procopius, compares Justinians appearance to that of tyrannical Emperor Domitian, although this is probably slander. When Emperor Anastasius died in 518, Justin was proclaimed the new emperor, during Justins reign, Justinian was the emperors close confidant. As Justin became senile near the end of his reign, Justinian became the de facto ruler, Justinian was appointed consul in 521 and later commander of the army of the east. Upon Justins death on 1 August 527, Justinian became the sole sovereign, as a ruler, Justinian showed great energy. He was known as the emperor who never sleeps on account of his work habits, nevertheless, he seems to have been amiable and easy to approach. Around 525, he married his mistress, Theodora, in Constantinople and she was by profession a courtesan and some twenty years his junior
Justinian I
–
Detail of a contemporary portrait mosaic in the
Basilica of San Vitale,
Ravenna.
Justinian I
Justinian I
–
The ancient town of
Tauresium, the birthplace of Justinian I, located in today's
Republic of Macedonia.
Justinian I
–
The
Barberini Ivory, which is thought to portray either Justinian or
Anastasius I
9.
Nabataean
–
100, gave the name of Nabatene to the borderland between Arabia and Syria, from the Euphrates to the Red Sea. They were later converted to Christianity, jane Taylor, a writer, describes them as one of the most gifted peoples of the ancient world. The Nabataeans were one among several nomadic tribes roamed the Arabian Desert, moving with their herds to wherever they could find pasture. These nomads became familiar with their area as seasons passed, although the Nabataeans were initially embedded in Aramaic culture, theories about them having Aramean roots are rejected by modern scholars. Instead, historical, religious and linguistic evidence confirm that they are a northern Arabian tribe, the precise origin of this specific tribe of Arab nomads remains uncertain. One hypothesis locates their original homeland in todays Yemen, in the south-west of the Arabian peninsula, however, their deities, language, another hypothesis argues that they came from the eastern coast of the Peninsula. The Nabataeans might have originated there and migrated west between the 6th and 4th centuries BCE into northwestern Arabia and much of what is now modern-day Jordan. Nabataeans have been associated with other groups of people. Another misconception is their identification with the Nebaioth of the Hebrew Bible, unlike the rest of the Arabian tribes, the Nabataeans later emerged as vital players in the region during their times of prosperity. However, they later faded and were forgotten, the Nabataeans had already some tincture of foreign culture when they first appear in history. They occupied Hauran, and in about 85 BCE their king Aretas III became lord of Damascus, proper names on their inscriptions suggest that they were ethnically Arabs who had come under Aramaic influence. Starcky identifies the Nabatu of southern Arabia as their ancestors, onomastic analysis has suggested that Nabataean culture may have had multiple influences. Their arid country was their best safeguard, for the bottle-shaped cisterns for rain-water which they excavated in the rocky or clay-rich soil were carefully concealed from invaders, the extent of Nabataean trade resulted in cross-cultural influences that reached as far as the Red Sea coast of southern Arabia. The gods worshipped at Petra were notably Dushara and al-‘Uzzá, the Nabataeans used to represent their gods as featureless pillars or blocks. Their most common monuments to the gods, commonly known as god blocks, however, the Nabataeans became so influenced by other cultures such as those of Greece and Rome that their gods eventually became anthropomorphic and were represented with human features. The Nabataean alphabet itself developed out of the Aramaic alphabet. The Aramaic language was affected by the Arabic language, as Arab influence grew in the region over time. From the 4th century, the Arabic influence becomes overwhelming, in a way that it may be said the Nabataean language shifted seamlessly from Aramaic to Arabic, the Arabic alphabet itself developed out of cursive variants of the Nabataean script in the 5th century
Nabataean
–
Al Khazneh,
Petra.
Nabataean
–
Map of the Roman empire under
Hadrian (ruled AD 117–138), showing the location of the Arabes Nabataei in the desert regions around the Roman province of
Arabia Petraea.
Nabataean
–
Shivta,
Israel.
Nabataean
–
Avdat, Israel
10.
Makhtesh Ramon
–
Makhtesh Ramon is a geological feature of Israels Negev desert. The crater is 40 km long, 2–10 km wide and 500 meters deep, the only settlement in the area is the small town of Mitzpe Ramon located on the northern edge of the crater. Today the crater and surrounding area forms Israels largest national park, hundreds of millions of years ago, the Negev desert was covered by an ocean. Slowly, this started to recede northwards leaving behind a hump-shaped hill, the hump was slowly flattened by water and climatic forces. Approximately five million years ago, the Arava Rift Valley was formed, with changing their courses. The crater bottom continued to deepen at a faster rate than the surrounding walls. As the crater deepened, more layers of ancient rock were exposed with rocks at the bottom of the crater being up to 200 million years old, Makhtesh Ramon contains a diversity of rocks including clay hills known for their fantastic red and yellow colors and forms. Limestone covered by basalt can also be found in smaller hills in the southern part of the makhtesh. Shen Ramon is a made of magma which hardened whilst underground. It later rose up through cracks in the Earths surface, and today stands in striking contrast with the nearby creamy coloured southern wall of the crater, as a black sharp-edged rock. In the centre of the makhtesh is HaMinsara, a low hill made up of columnar jointed sandstone - polygonal prismatic columns of quartzite, the pterioid bivalve Family Ramonalinidae is found in early Middle Triassic rocks of Makhtesh Ramon and was named after this feature. The Asian wild ass has been reintroduced to Makhtesh Ramon, in 1995 the population had increased to 40 adults in the area. The animals are hybrids of two different subspecies of the Asian Wild Ass and it is derived from the Turkmenian kulan and the Persian onager. The original subspecies, the Syrian wild ass, is completely extinct, other larger mammals of the area include Nubian ibexes, Dorcas gazelles, striped hyenas and few Arabian leopards. The ruins of a prehistoric stone structure known as Khan Saharonim are found in the makhtesh, as it lies along the ancient Incense Route. These ruins acted as a way station for the traders and their animals as they proceeded further westwards to the Mediterranean seaport city of Gaza, mazor, Emanuel and Krasnov, Boris, editors The Makhteshim Country - a Laboratory of Nature. Birds eye view of Ramon Crater
Makhtesh Ramon
–
The makhtesh is 40 km long, 2–10 km wide and 500 meters deep.
Makhtesh Ramon
–
A
Nubian ibex by the entrance to Makhtesh Ramon
Makhtesh Ramon
–
Wide panorama of the Makhtesh Ramon crater, Israel
Makhtesh Ramon
–
The cliff
11.
Silifke
–
Silifke is a town and district in south-central Mersin Province, Turkey,80 km west of the city of Mersin, on the west end of Çukurova. Silifke is near the Mediterranean coast, on the banks of the Göksu River, Silifke was formerly called Seleucia on the Calycadnus — variously cited over the centuries as Seleucia Cilicia, Seleucia Isauria, Seleucia Trachea, and Seleucia Tracheotis —. The city took its name from its founder, King Seleucus I Nicator, the ancient Greek city of Olba was also within the boundaries of modern-day Silifke. The modern name is a corruption of the Latin Seleucia, the economy of the district depends on agriculture, tourism and raising livestock. The town of Silifke is as a market for the plain, which produces beans, peanuts, sesame, banana, orange, lemon, cotton, grapes, lentils, olives, tobacco. An irrigation project located at Silifke supplies the fertile Göksu delta, in recent years there has been a large investment in glasshouses for producing strawberries and other fruit and vegetables in the winter season. Silifke is also a town, well-connected with other urban areas and producing beverages, chemicals, clothes, footwear, glass, plastics, pottery. Silifke has a climate with hot and dry summers and mild. It is probable there were already towns called Olbia and Hyria. The city grew to include the settlement of Holmi which had been established earlier as an Ionian colony but being on the coast was vulnerable to raiders. Cilicia thrived as a province of the Romans, and Seleucia became a center with a renowned 2nd century Temple of Jupiter. It was also the site of a school of philosophy and literature. The stone bridge was built by the governor L. Octavius Memor in 77 AD, around 300 AD Isauria was established as an independent state with Seleucia as the capital. Early Christian bishops held a Council of Seleucia in 325,359, in the 5th century the imperial governor in residence at Seleucia had two legions at his disposal, the Legio II Isaura and the Legio III Isaura. From this period, and perhaps later, dates the Christian necropolis, west of the town, according to the Notitia Episcopatuum of Antioch, in the 6th century, the Metropolitan of Seleucia had twenty-four suffragan sees. In 705 Seleucia was captured by the Arab armies of Islam and was recovered by the Byzantines, in the Notitiae of Leo VI the Wise Seleucia had 22 suffragan bishoprics, in that of Constantine Porphyrogenitus it had 23. In 968 Antioch again fell into the power of the Byzantines, in the 11th century, the city was captured by the Seljuk Turks, they met with resistance and in 1137, Seleucia was besieged by Leon of Cilician Armenia. During this period of struggle between Armenians, Byzantines, Crusaders and Turks a stronghold was built on the heights overlooking the city, on June 10,1190, the Emperor Frederick Barbarossa was drowned trying to cross the Calycadnus, near Seleucia during the Third Crusade
Silifke
–
Outer walls of the castle of Silifke
Silifke
–
Help: this castle has no entry
Silifke
–
Bar next to the castle of Silifke
Silifke
–
Touristic panel describing the castle of Silifke
12.
Mersin Province
–
The Mersin Province is a province in southern Turkey, on the Mediterranean coast between Antalya and Adana. The provincial capital is the city of Mersin and the major town is Tarsus. The province is part of Çukurova, a geographical, economical and cultural region, in 2002, the provinces name was changed from İçel to Mersin but the province retained the license plate number of 33, İçel having been the 33rd in the alphabetical order of Turkish province names. There are many high meadows and small plains between 700 and 1500m, the coastal strip has many large areas of flatland, formed from soil brought down by rivers and streams running off the mountains. This is fertile land, the largest area being the plain of Tarsus, the largest rivers are the Göksu and the Berdan, but there are many small streams running into lakes, reservoirs or the Mediterranean sea. Mersin has 321 km of coastline, much of it sandy beach, with all this activity a modern city has grown with a university and other major amenities. About 50% of the population of the province is younger than 24 years of age, about 43% of the male population and about 27% of the female population graduated from middle school. Urban population growth rate is 2. 42%, in summer the hills are a popular retreat from the high humidity and extreme heat on the coast. West of Mersin includes bays, and little islands, yacht touring is a tourism income in these areas. In antiquity this coast was part of Cilicia, named for a Phoenician or Assyrian prince that had settled here, trade from Syria and Mesopotamia over the mountains to central Anatolia passed through here, through the Cilician Gates. The geographer Strabo, described the region as being divided into Rugged Cilicia, the capital of both sections of Cilicia was Tarsus and Mersin was its seaport. Mersin province is divided into thirteen districts four of which are included within the municipality of Mersin city. Silifke - ancient Seleucia Pieria, buildings include the church of Aya Tekla, the ancient Roman town of Soloi-Pompeiopolis, now within the city. About Mersin The ancient Roman town of Anemurium, adjacent to the town of Anamur. Another ancient city of Elaiussa Sebaste,55 km from the city of Mersin, castles including Mamure, Kızkalesi and Namrun
Mersin Province
–
Mersin Province Mersin ili
Mersin Province
–
Mersin Mediterranean sea shore
Mersin Province
–
Mersin Refah monument
Mersin Province
–
Mersin Light house
13.
Turkey
–
Turkey, officially the Republic of Turkey, is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a cultural heritage. The country is encircled by seas on three sides, the Aegean Sea is to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, Ankara is the capital while Istanbul is the countrys largest city and main cultural and commercial centre. Approximately 70-80% of the countrys citizens identify themselves as ethnic Turks, other ethnic groups include legally recognised and unrecognised minorities. Kurds are the largest ethnic minority group, making up approximately 20% of the population, the area of Turkey has been inhabited since the Paleolithic by various ancient Anatolian civilisations, as well as Assyrians, Greeks, Thracians, Phrygians, Urartians and Armenians. After Alexander the Greats conquest, the area was Hellenized, a process continued under the Roman Empire. The Seljuk Sultanate of Rûm ruled Anatolia until the Mongol invasion in 1243, the empire reached the peak of its power in the 16th century, especially during the reign of Suleiman the Magnificent. During the war, the Ottoman government committed genocides against its Armenian, Assyrian, following the war, the conglomeration of territories and peoples that formerly comprised the Ottoman Empire was partitioned into several new states. Turkey is a member of the UN, an early member of NATO. Turkeys growing economy and diplomatic initiatives have led to its recognition as a regional power while her location has given it geopolitical, the name of Turkey is based on the ethnonym Türk. The first recorded use of the term Türk or Türük as an autonym is contained in the Old Turkic inscriptions of the Göktürks of Central Asia, the English name Turkey first appeared in the late 14th century and is derived from Medieval Latin Turchia. Similarly, the medieval Khazar Empire, a Turkic state on the shores of the Black. The medieval Arabs referred to the Mamluk Sultanate as al-Dawla al-Turkiyya, the Ottoman Empire was sometimes referred to as Turkey or the Turkish Empire among its European contemporaries. The Anatolian peninsula, comprising most of modern Turkey, is one of the oldest permanently settled regions in the world, various ancient Anatolian populations have lived in Anatolia, from at least the Neolithic period until the Hellenistic period. Many of these peoples spoke the Anatolian languages, a branch of the larger Indo-European language family, in fact, given the antiquity of the Indo-European Hittite and Luwian languages, some scholars have proposed Anatolia as the hypothetical centre from which the Indo-European languages radiated. The European part of Turkey, called Eastern Thrace, has also been inhabited since at least forty years ago. It is the largest and best-preserved Neolithic site found to date, the settlement of Troy started in the Neolithic Age and continued into the Iron Age
Turkey
–
Some
henges at
Göbekli Tepe were erected as far back as 12,000 BC, predating those of
Stonehenge,
England by almost ten millennia.
Turkey
–
Flag
Turkey
–
The Lion Gate in
Hattusa, capital of the
Hittite Empire. The city's history dates back to the 6th millennium BC.
Turkey
–
The
Library of Celsus in
Ephesus was built by the
Romans in 135 AD. The
Temple of Artemis in Ephesus, built by king
Croesus of
Lydia in the 6th century BC, was one of the
Seven Wonders of the Ancient World.
14.
Middle English
–
This stage of the development of the English language roughly followed the High to the Late Middle Ages. Middle English developed out of Late Old English, seeing many dramatic changes in its grammar, pronunciation and this largely forms the basis for Modern English spelling, although pronunciation has changed considerably since that time. Middle English was succeeded in England by the era of Early Modern English, by that time, a variant of the Northumbrian dialect was developing into the Scots language. During the Middle English period many Old English grammatical features were simplified or disappeared, noun, adjective and verb inflections were simplified, a process that included the reduction of most grammatical case distinctions. Middle English also saw an adoption of Norman French vocabulary, especially in areas such as politics, law. Everyday English vocabulary remained mostly Germanic, with Old Norse influence becoming apparent, significant changes in pronunciation took place, especially for long vowels and diphthongs, which in the later Middle English period began to undergo the Great Vowel Shift. Little survives of early Middle English literature, most likely due to the Norman domination, poets wrote both in the vernacular and courtly English. It is popularly believed that William Shakespeare wrote in Middle English, the latter part of the 11th century was a period of transition from Late Old English to Early Middle English. The influence of Old Norse certainly helped move English from a synthetic language towards a more analytic or isolating word order and it was, after all, a salutary influence. The gain was greater than the loss, there was a gain in directness, in clarity, and in strength. The change to Old English from Old Norse was substantive, pervasive and it is most important to recognise that in many words the English and Scandinavian language differed chiefly in their inflectional elements. The body of the word was so nearly the same in the two languages only the endings would put obstacles in the way of mutual understanding. In the mixed population which existed in the Danelaw these endings must have led to confusion, tending gradually to become obscured. This blending of peoples and languages resulted in simplifying English grammar. There are also many Norman-derived terms relating to the cultures that arose in the 12th century. Sometimes, and particularly later, words were taken from Latin, giving such sets as kingly, later French borrowings came from standard rather than Norman French, this leads to such cognate pairs as warden, guardian. The end of Anglo-Saxon rule did not, of course, change the language immediately, the general population would have spoken the same dialects as before the Conquest, these changed slowly until written records of them became available for study, which varies in different regions. Once the writing of Old English came to an end, Middle English had no standard language, Early Middle English has a largely Anglo-Saxon vocabulary, but a greatly simplified inflectional system
Middle English
–
A page from
Geoffrey Chaucer 's
The Canterbury Tales
15.
Latin
–
Latin is a classical language belonging to the Italic branch of the Indo-European languages. The Latin alphabet is derived from the Etruscan and Greek alphabets, Latin was originally spoken in Latium, in the Italian Peninsula. Through the power of the Roman Republic, it became the dominant language, Vulgar Latin developed into the Romance languages, such as Italian, Portuguese, Spanish, French, and Romanian. Latin, Italian and French have contributed many words to the English language, Latin and Ancient Greek roots are used in theology, biology, and medicine. By the late Roman Republic, Old Latin had been standardised into Classical Latin, Vulgar Latin was the colloquial form spoken during the same time and attested in inscriptions and the works of comic playwrights like Plautus and Terence. Late Latin is the language from the 3rd century. Later, Early Modern Latin and Modern Latin evolved, Latin was used as the language of international communication, scholarship, and science until well into the 18th century, when it began to be supplanted by vernaculars. Ecclesiastical Latin remains the language of the Holy See and the Roman Rite of the Catholic Church. Today, many students, scholars and members of the Catholic clergy speak Latin fluently and it is taught in primary, secondary and postsecondary educational institutions around the world. The language has been passed down through various forms, some inscriptions have been published in an internationally agreed, monumental, multivolume series, the Corpus Inscriptionum Latinarum. Authors and publishers vary, but the format is about the same, volumes detailing inscriptions with a critical apparatus stating the provenance, the reading and interpretation of these inscriptions is the subject matter of the field of epigraphy. The works of several hundred ancient authors who wrote in Latin have survived in whole or in part and they are in part the subject matter of the field of classics. The Cat in the Hat, and a book of fairy tales, additional resources include phrasebooks and resources for rendering everyday phrases and concepts into Latin, such as Meissners Latin Phrasebook. The Latin influence in English has been significant at all stages of its insular development. From the 16th to the 18th centuries, English writers cobbled together huge numbers of new words from Latin and Greek words, dubbed inkhorn terms, as if they had spilled from a pot of ink. Many of these words were used once by the author and then forgotten, many of the most common polysyllabic English words are of Latin origin through the medium of Old French. Romance words make respectively 59%, 20% and 14% of English, German and those figures can rise dramatically when only non-compound and non-derived words are included. Accordingly, Romance words make roughly 35% of the vocabulary of Dutch, Roman engineering had the same effect on scientific terminology as a whole
Latin
–
Latin inscription, in the
Colosseum
Latin
–
Julius Caesar 's
Commentarii de Bello Gallico is one of the most famous classical Latin texts of the Golden Age of Latin. The unvarnished, journalistic style of this
patrician general has long been taught as a model of the urbane Latin officially spoken and written in the floruit of the
Roman republic.
Latin
–
A multi-volume Latin dictionary in the
University Library of Graz
Latin
–
Latin and Ancient Greek Language - Culture - Linguistics at
Duke University in 2014.
16.
Greek language
–
Greek is an independent branch of the Indo-European family of languages, native to Greece and other parts of the Eastern Mediterranean. It has the longest documented history of any living language, spanning 34 centuries of written records and its writing system has been the Greek alphabet for the major part of its history, other systems, such as Linear B and the Cypriot syllabary, were used previously. The alphabet arose from the Phoenician script and was in turn the basis of the Latin, Cyrillic, Armenian, Coptic, Gothic and many other writing systems. Together with the Latin texts and traditions of the Roman world, during antiquity, Greek was a widely spoken lingua franca in the Mediterranean world and many places beyond. It would eventually become the official parlance of the Byzantine Empire, the language is spoken by at least 13.2 million people today in Greece, Cyprus, Italy, Albania, Turkey, and the Greek diaspora. Greek roots are used to coin new words for other languages, Greek. Greek has been spoken in the Balkan peninsula since around the 3rd millennium BC, the earliest written evidence is a Linear B clay tablet found in Messenia that dates to between 1450 and 1350 BC, making Greek the worlds oldest recorded living language. Among the Indo-European languages, its date of earliest written attestation is matched only by the now extinct Anatolian languages, the Greek language is conventionally divided into the following periods, Proto-Greek, the unrecorded but assumed last ancestor of all known varieties of Greek. The unity of Proto-Greek would have ended as Hellenic migrants entered the Greek peninsula sometime in the Neolithic era or the Bronze Age, Mycenaean Greek, the language of the Mycenaean civilisation. It is recorded in the Linear B script on tablets dating from the 15th century BC onwards, Ancient Greek, in its various dialects, the language of the Archaic and Classical periods of the ancient Greek civilisation. It was widely known throughout the Roman Empire, after the Roman conquest of Greece, an unofficial bilingualism of Greek and Latin was established in the city of Rome and Koine Greek became a first or second language in the Roman Empire. The origin of Christianity can also be traced through Koine Greek, Medieval Greek, also known as Byzantine Greek, the continuation of Koine Greek in Byzantine Greece, up to the demise of the Byzantine Empire in the 15th century. Much of the written Greek that was used as the language of the Byzantine Empire was an eclectic middle-ground variety based on the tradition of written Koine. Modern Greek, Stemming from Medieval Greek, Modern Greek usages can be traced in the Byzantine period and it is the language used by the modern Greeks, and, apart from Standard Modern Greek, there are several dialects of it. In the modern era, the Greek language entered a state of diglossia, the historical unity and continuing identity between the various stages of the Greek language is often emphasised. Greek speakers today still tend to regard literary works of ancient Greek as part of their own rather than a foreign language and it is also often stated that the historical changes have been relatively slight compared with some other languages. According to one estimation, Homeric Greek is probably closer to demotic than 12-century Middle English is to modern spoken English, Greek is spoken by about 13 million people, mainly in Greece, Albania and Cyprus, but also worldwide by the large Greek diaspora. Greek is the language of Greece, where it is spoken by almost the entire population
Greek language
–
Idealized portrayal of
Homer
Greek language
–
regions where Greek is the official language
Greek language
–
Greek language road sign, A27 Motorway, Greece
17.
Rainwater tank
–
A rainwater tank is a water tank used to collect and store rain water runoff, typically from rooftops via rain gutters. A rainwater catchment or collection system can yield 2358 litres of water from 2.54 cm of rain on a 93 m2 roof, Rainwater tanks are devices for collecting and maintaining harvested rain. Rainwater tanks are installed to use of rain water for later use, reduce mains water use for economic or environmental reasons. Underground rainwater tanks can also be used for retention of stormwater for release at a later time, in arid climates, rain barrels are often used to store water during the rainy season for use during dryer periods. Rainwater tanks may have an initial cost. However, many homes use small scale rain barrels to harvest minute quantities of water for landscaping/gardening applications rather than as a potable water surrogate. These small rain barrels, often recycled from food storage and transport barrels or, in cases, whiskey. While most are properly engineered to screen out mosquitoes, the lack of proper filtering or closed loop systems may create breeding grounds for larvae, with tanks used for drinking water, the user runs a health risk if maintenance is not carried out. If rainwater is used for drinking, it is often filtered first, while rain water is pure it may become contaminated during collection or by collection of particulate matter in the air as it falls. While rain water does not contain chlorine, contamination from airborne pollutants, many water suppliers and health authorities, such as the New South Wales Department of Health, do not advise using rainwater for drinking when there is an alternative mains water supply available. However, reports of associated with rainwater tanks are relatively infrequent. Australian standards may differ greatly from other places in the world where rainwater is used for drinking water. In the United States, rainwater is being used throughout the country for various purposes. In the semi-arid western state of New Mexico, for instance, many residents in the Taos, the smells, tastes, and looks fine standard used in the above paragraph is not an absolute indicator of rainwater safety. Most people who are rainwater users for potable purposes in the USA make certain that their water is safe through filtration, ultraviolet sterilization, certain paints and roofing materials may cause contamination. In particular, a Melbourne Water publication advises that lead-based paints never be used, tar-based coatings are also not recommended, as they affect the taste of the water. Zinc can also be a source of contamination in some paints, as well as galvanized iron or zincalume roofs, particularly when new, roofs painted with acrylic paints may have detergents and other chemicals dissolve in the runoff. Runoff from fibrous cement roofs should be discarded for an entire winter, chemically treated timbers and lead flashing should not be used in roof catchments
Rainwater tank
–
Some of the rainwater tanks around
CERES Community Environment Park, in Melbourne, Australia.
Rainwater tank
–
A plastic water container (
IBC)
Rainwater tank
–
Large polyethylene rainwater tanks being installed.
18.
Water well
–
A water well is an excavation or structure created in the ground by digging, driving, boring, or drilling to access groundwater in underground aquifers. The well water is drawn by a pump, or using containers, such as buckets, placing a lining in the well shaft helps create stability and linings of wood or wickerwork date back at least as far as the Iron Age. Wells have been sunk by hand digging as is the case in rural developing areas. These wells are inexpensive and low-tech as they use mostly manual labour, a more modern method called caissoning uses pre-cast reinforced concrete well rings that are lowered into the hole. Deeper wells can be excavated by hand drilling methods or machine drilling, using a bit in a borehole, drilled wells are usually cased with a factory-made pipe composed of steel or plastic. Drilled wells can access water at greater depths than dug wells. A collector well can be constructed adjacent to a lake or stream with water percolating through the intervening material. The site of a well can be selected by a hydrogeologist, Water may be pumped or hand drawn. Impurities from the surface can easily reach shallow sources and contamination of the supply by pathogens or chemical contaminants needs to be avoided, Well water typically contains more minerals in solution than surface water and may require treatment before being potable. Soil salination can occur as the water falls and the surrounding soil begins to dry out. Another environmental problem is the potential for methane to seep into the water, hand-dug wells are excavations with diameters large enough to accommodate one or more people with shovels digging down to below the water table. The excavation is braced horizontally to avoid landslide or erosion endangering the people digging, a more modern method called caissoning uses reinforced concrete or plain concrete pre-cast well rings that are lowered into the hole. A well-digging team digs under a ring and the well column slowly sinks into the aquifer. Hand-dug wells are inexpensive and low tech as they use mostly manual labour to access groundwater in rural locations in developing countries and they may be built with a high degree of community participation, or by local entrepreneurs who specialize in hand-dug wells. They have been excavated to 60 metres. They have low operational and maintenance costs, in part because water can be extracted by hand bailing, without a pump. The water is coming from an aquifer or groundwater, and can be easily deepened. The yield of existing hand dug wells may be improved by deepening or introducing vertical tunnels or perforated pipes, drawbacks to hand-dug wells are numerous
Water well
–
A dug well in a village in
Faryab Province,
Afghanistan.
Water well
–
Leather bucket used for the water well.
Water well
–
A dug well, large
shadoof (well sweep), and old barn in
Markowa, Poland
Water well
–
Well, Historical Village, Bhaini Sahib, Ludhyana, Punjab, India
19.
Reservoir (water)
–
A reservoir is a storage space for fluids. These fluids may be water, hydrocarbons or gas, a reservoir usually means an enlarged natural or artificial lake, storage pond or impoundment created using a dam or lock to store water. Reservoirs can be created by controlling a stream that drains a body of water. They can also be constructed in river valleys using a dam, alternately, a reservoir can be built by excavating flat ground or constructing retaining walls and levees. Tank reservoirs store liquids or gases in storage tanks that may be elevated, at grade level, tank reservoirs for water are also called cisterns. Underground reservoirs are used to store liquids, principally either water or petroleum, a dam constructed in a valley relies on the natural topography to provide most of the basin of the reservoir. Dams are typically located at a part of a valley downstream of a natural basin. The valley sides act as walls, with the dam located at the narrowest practical point to provide strength. In many reservoir construction projects, people have to be moved and re-housed, construction of a reservoir in a valley will usually need the river to be diverted during part of the build, often through a temporary tunnel or by-pass channel. In hilly regions, reservoirs are constructed by enlarging existing lakes. Sometimes in such reservoirs the new top water level exceeds the height on one or more of the feeder streams such as at Llyn Clywedog in Mid Wales. In such cases additional side dams are required to contain the reservoir, where water is pumped or siphoned from a river of variable quality or quantity, bank-side reservoirs may be built to store the water. Such reservoirs are usually formed partly by excavation and partly by building a complete encircling bund or embankment, the water stored in such reservoirs may stay there for several months, during which time normal biological processes may substantially reduce many contaminants and almost eliminate any turbidity. The use of reservoirs also allows water abstraction to be stopped for some time. Service reservoirs store fully treated potable water close to the point of distribution, many service reservoirs are constructed as water towers, often as elevated structures on concrete pillars where the landscape is relatively flat. Other service reservoirs can be almost entirely underground, especially in hilly or mountainous country. In the United Kingdom, Thames Water has many underground reservoirs, sometimes called cisterns, built in the 1800s. A good example is the Honor Oak Reservoir in London, constructed between 1901 and 1909, when it was completed it was said to be the largest brick built underground reservoir in the world and it is still one of the largest in Europe
Reservoir (water)
–
The
Junghua Dam and reservoir on the
Dahan Creek in
Taoyuan City,
Taiwan.
Reservoir (water)
–
Lake Vyrnwy Reservoir. The dam spans the
Vyrnwy Valley and was the first large stone dam built in the
United Kingdom.
Reservoir (water)
–
The
East Branch Reservoir, part of the
New York City water supply system, is formed by impounding the
eastern tributary of the
Croton River.
Reservoir (water)
–
Haweswater in the
Lake District, UK supplies water to
Manchester.
20.
Lime plaster
–
Lime plaster is a type of plaster composed of sand, water, and lime, usually non-hydraulic hydrated lime. Ancient lime plaster often contained horse hair for reinforcement and pozzolan additives to reduce the working time, traditional non-hydraulic hydrated lime only sets through carbonatation when the plaster is kept moist and access of CO2 from the air is possible. It will not set when submersed in water, when a very thick layer or several layers are applied the lime can remain soft for weeks. The curing time of lime plaster can be shortened by using lime or adding pozzolan additives. In ancient times, Roman lime plaster incorporated pozzolanic volcanic ash, in modern times, non-hydraulic lime plaster can also be made to set faster by adding gypsum. Lime plaster sets up to a mass that is durable yet relatively flexible. Hydraulic lime plaster can be almost as hard as cement plaster, when cured lime plaster is unaffected by water and will not soften or dissolve like drywall and earthen or gypsum plaster. Unlike gypsum or clay plaster, lime plaster is sufficiently durable, compared to cement plaster, plaster made from hydrated lime is less brittle and less prone to cracking, requiring no expansion joints. It will not detach from the wall when subjected to stress due to expansion inflicted by solar radiation. Unlike cement plaster it will shield softer materials from shear stresses otherwise possibly causing the deterioration of the underlaying surface and it is usually not recommended to replace more than 20% of the lime content with cement when rendering the facade. Lime plaster is permeable and allows for the diffusion and evaporation of moisture, the elevated pH of the lime in the plaster will act as a fungicide, mold will not grow in lime plaster. Non-hydraulic lime plaster sets slowly and is quite caustic while wet, plasterers must take care to protect themselves or use mild acids as vinegar or lemon juice to neutralize chemical burn. When the plaster is dry, the pH falls to about 8.6, non-hydraulic lime plaster requires moisture to set and has to be prevented from drying for several days. The number of qualified tradesmen capable of plastering with lime is in due to widespread adoption of drywall. One of the earliest examples of lime plaster dates back to the end of the eighth millennium BC, three statues were discovered in a buried pit at Ain Ghazal in Jordan that were sculpted with lime plaster over armatures of reeds and twine. They were made in the neolithic period, around 7200 BC. The fact that these sculptures have lasted so long is a testament to the durability of lime plaster, lime plaster was found to have been a multi-purpose material at the archaeological site of Ain Ghazal in modern-day Jordan. The site dates human occupation from 7200 BC to 5000 BC, lime plaster is believed to have coated internal walls of buildings and to have been used as the main component of some anthropomorphical figurines discovered at the site
Lime plaster
–
Painted Lime Plaster Mask and Skull of a Man - British Museum
21.
Neolithic
–
It ended when metal tools became widespread. The Neolithic is a progression of behavioral and cultural characteristics and changes, including the use of wild and domestic crops, the beginning of the Neolithic culture is considered to be in the Levant about 10, 200–8800 BC. It developed directly from the Epipaleolithic Natufian culture in the region, whose people pioneered the use of wild cereals, which then evolved into true farming. The Natufian period was between 12,000 and 10,200 BC, and the so-called proto-Neolithic is now included in the Pre-Pottery Neolithic between 10,200 and 8800 BC. By 10, 200–8800 BC, farming communities arose in the Levant and spread to Asia Minor, North Africa, Mesopotamia is the site of the earliest developments of the Neolithic Revolution from around 10,000 BC. Early Neolithic farming was limited to a range of plants, both wild and domesticated, which included einkorn wheat, millet and spelt, and the keeping of dogs, sheep. By about 6900–6400 BC, it included domesticated cattle and pigs, the establishment of permanently or seasonally inhabited settlements, not all of these cultural elements characteristic of the Neolithic appeared everywhere in the same order, the earliest farming societies in the Near East did not use pottery. Early Japanese societies and other East Asian cultures used pottery before developing agriculture, unlike the Paleolithic, when more than one human species existed, only one human species reached the Neolithic. The term Neolithic derives from the Greek νέος néos, new and λίθος líthos, stone, the term was invented by Sir John Lubbock in 1865 as a refinement of the three-age system. In the Middle East, cultures identified as Neolithic began appearing in the 10th millennium BC, early development occurred in the Levant and from there spread eastwards and westwards. Neolithic cultures are attested in southeastern Anatolia and northern Mesopotamia by around 8000 BC. The total excavated area is more than 1,200 square yards, the Neolithic 1 period began roughly 10,000 years ago in the Levant. A temple area in southeastern Turkey at Göbekli Tepe dated around 9500 BC may be regarded as the beginning of the period. This site was developed by nomadic tribes, evidenced by the lack of permanent housing in the vicinity. At least seven stone circles, covering 25 acres, contain limestone pillars carved with animals, insects, Stone tools were used by perhaps as many as hundreds of people to create the pillars, which might have supported roofs. Other early PPNA sites dating to around 9500–9000 BC have been found in Jericho, Israel, Gilgal in the Jordan Valley, the start of Neolithic 1 overlaps the Tahunian and Heavy Neolithic periods to some degree. The major advance of Neolithic 1 was true farming, in the proto-Neolithic Natufian cultures, wild cereals were harvested, and perhaps early seed selection and re-seeding occurred. The grain was ground into flour, emmer wheat was domesticated, and animals were herded and domesticated
Neolithic
–
An array of Neolithic artifacts, including bracelets, axe heads, chisels, and polishing tools. Neolithic stone artifacts are by definition polished and, except for specialty items, not chipped.
Neolithic
–
Algerian cave paintings depicting hunting scenes
Neolithic
–
Female figure from
Tumba Madžari,
Republic of Macedonia
Neolithic
–
Skara Brae, Scotland. Evidence of home furnishings (shelves)
22.
Levant
–
The Levant is an approximate historical geographical term referring to a large area in the Eastern Mediterranean. The term Levant entered English in the late 15th century from French and it derives from the Italian Levante, meaning rising, implying the rising of the sun in the east. As such, it is equivalent to the Arabic term Mashriq. Eventually the term was restricted to the Muslim countries of Syria-Palestine, in 1581, England set up the Levant Company to monopolize commerce with the Ottoman Empire. The name Levant States was used to refer to the French mandate over Syria and this is probably the reason why the term Levant has come to be used synonymously with Syria-Palestine. Some scholars misunderstood the term thinking that it derives from the name of Lebanon, today the term is typically used in conjunction with prehistoric or ancient historical references. It does not include Anatolia, the Caucasus Mountains, or any part of the Arabian Peninsula proper, the Sinai Peninsula is sometimes included. The Levant has been described as the crossroads of western Asia, the eastern Mediterranean, and northeast Africa, the populations of the Levant share not only the geographic position, but cuisine, some customs, and a very long history. They are often referred to as Levantines, the term Levant, which appeared in English in 1497, originally meant the East in general or Mediterranean lands east of Italy. It is borrowed from the French levant rising, referring to the rising of the sun in the east, the phrase is ultimately from the Latin word levare, meaning lift, raise. Similar etymologies are found in Greek Ἀνατολή, in Germanic Morgenland, in Italian, in Hungarian Kelet, in Spanish and Catalan Levante and Llevant, most notably, Orient and its Latin source oriens meaning east, is literally rising, deriving from Latin orior rise. The notion of the Levant has undergone a process of historical evolution in usage, meaning. While the term Levantine originally referred to the European residents of the eastern Mediterranean region, it came to refer to regional native. The English Levant Company was founded in 1581 to trade with the Ottoman Empire, at this time, the Far East was known as the Upper Levant. In early 19th-century travel writing, the term sometimes incorporated certain Mediterranean provinces of the Ottoman empire, in 19th-century archaeology, it referred to overlapping cultures in this region during and after prehistoric times, intending to reference the place instead of any one culture. The French mandate of Syria and Lebanon was called the Levant states, today, Levant is the term typically used by archaeologists and historians with reference to the history of the region. Scholars have adopted the term Levant to identify the region due to it being a wider, yet relevant, archaeologists seeking a neutral orientation that is neither biblical nor national have used terms such as Levantine archaeology and archaeology of the Southern Levant. Two academic journals were launched, Journal of Levantine Studies, published by the Van Leer Jerusalem Institute and The Levantine Review
Levant
–
The
Levantine Sea, the eastern portion of the
Mediterranean.
Levant
–
Countries of the Levant in the broad, historic meaning (equivalent to the
eastern Mediterranean)
Levant
–
French medal commemorating the
war in
Cilicia, which was initially part of the
French mandate.
Levant
–
Satellite view of part of the Levant including
Cyprus,
Israel,
Jordan,
Lebanon,
Palestine, and southern
Syria.
23.
Dry-land farming
–
Dryland farming and dry farming are agricultural techniques for non-irrigated cultivation of crops. Dryland farming is associated with drylands - dry areas characterized by a wet season followed by a warm dry season. Dryland farming was introduced to southern Russia and Ukraine by Ukrainian Mennonites under the influence of Johann Cornies, in Australia, it is widely practiced in all states but the Northern Territory. Dry farming may be practiced in areas that have significant annual rainfall during a wet season, Crops are cultivated during the subsequent dry season, using practices that make use of the stored moisture in the soil. California, Colorado and Oregon, in the United States, are three states where dry farming is practiced for a variety of crops, Dryland farmed crops may include winter wheat, corn, beans, Sunflowers or even watermelon. Successful dryland farming is possible with as little as 9 inches of precipitation a year, native American tribes in the arid Southwest survived for hundreds of years on dryland farming in areas with less than 10 inches of rain. The choice of crop is influenced by the timing of the predominant rainfall in relation to the seasons. For example, winter wheat is more suited to regions with higher winter rainfall areas with summer wet seasons may be more suited to summer growing crops such as sorghum. Dry farmed crops may include grapes, tomatoes, pumpkins, beans and these crops grow using the winter water stored in the soil, rather than depending on rainfall during the growing season. Dryland farming has evolved as a set of techniques and management practices used by farmers to adapt to the presence or lack of moisture in a given crop cycle. In marginal regions, a farmer should be able to survive occasional crop failures. Survival as a dryland farmer requires careful husbandry of the moisture available for the crop, Dryland farming involves the constant assessing of the amount of moisture present or lacking for any given crop cycle and planning accordingly. Dryland farmers know that to be successful they have to be aggressive during the good years in order to offset the dry years. The fact that a period must be included in the crop rotation means that fields cannot always be protected by a cover crop. Some of the theories of dryland farming developed in the late 19th and early 20th centuries claimed to be scientific but were in reality pseudoscientific, Dry farming depends on making the best use of the bank of soil moisture that was created by winter rainfall. Some dry farming practices include, Wider than normal spacing, to provide a bank of moisture for each plant. Strict weed control, to ensure that weeds do not consume soil moisture needed by the cultivated plants, cultivation of soil to produce a dust mulch, thought to prevent the loss of water through capillary action. This practice is controversial, and is not universally advocated, selection of crops and cultivars suited for dry farming practices
Dry-land farming
–
Dryland farming in the
Granada region in Spain
Dry-land farming
–
Agriculture
Dry-land farming
–
Fields in the
Palouse, USA
Dry-land farming
–
Dryland farming caused a large
dust storm in parts of
Eastern Washington on October 4, 2009. Courtesey: NASA/GSFC, MODIS Rapid Response
24.
Hill castle
–
A hill castle is a castle built on a natural feature that stands above the surrounding terrain. It is a derived from the German Höhenburg used in categorising castle sites by their topographical location. Hill castles are thus distinguished from lowland castles, hill castles may be further subdivided depending on their situation into the following, Hilltop castle, that stands on the summit of a hill with steep drops on all sides. A special type is the castle or Felsenburg. Ridge castle, that is built on the crest of a ridge, hillside castle, that is built on the side of a hill and thus is dominated by rising ground on one side. Spur castle, that is built on a spur surrounded by steep terrain on three sides and thus only needs to be defended on the one remaining side. In Germany, almost 66 per cent of all medieval castles known today are of the hill castle type, in the earliest centuries of castle construction only great nobles and kings had the power to build them. From the 12th century, however, the imperial ministeriales also built representative hill castles. This pattern was followed in the 13th century by the lesser nobility, today hill castles primarily serve as tourist attractions, mainly because they often have good views − albeit in some cases for the cost of an entrance fee. They also often have restaurants or kiosks, in some cases, where they are preserved, the interior of the castle may be visited. Examples of hill castles are Kriebstein Castle, the Marksburg, Ehrenfels Castle, lowland castle Rocca, an Italian term for fortified houses or small castles built on higher ground above a town as refuge or protection. Horst Wolfgang Böhme, Reinhard Friedrich, Barbara Schock-Werner, Wörterbuch der Burgen, reclam, Stuttgart 2004, ISBN 3-15-010547-1, p.156. Friedrich-Wilhelm Krahe, Burgen und Wohntürme des deutschen Mittelalters, thorbecke, Stuttgart 2002, ISBN 3-7995-0104-5, pp. 21-23
Hill castle
–
The
Marksburg in
Germany is a typical example of a hill castle
Hill castle
–
The
Ljubljana Castle in
Slovenia is Medieval fortress, built in the 11th century and rebuilt in the 12th century.
Hill castle
–
Hohenzollern Castle at a height of 855 m in the
Swabian Jura,
Germany.
Hill castle
–
The
Montechino castle in
Montechino, example of an Italian castle built on a hill
25.
Castle well
–
A castle well was a water well built to supply drinking water to a castle. It was often the most costly and time-consuming element in the building of a castle, and its construction time could span several decades. The well – as well as any available cisterns – provided a source of drinking water for the castle garrison in peace and war. In medieval times, external wells were poisoned, usually with a decomposing body. But wells sunk within the castle itself could not be poisoned from outside during a siege and this was particularly challenging in the construction of hill castles. In addition, there was also the problem of providing sufficient oxygen for well diggers as they dug the well out of the rock by hand, over the projecting chimney so formed, a fireplace was built that sucked air through the well shaft below. Fresh air circulated through the artificially built U-shaped pipe so created and this supplied fresh air at the bend which provided the diggers with sufficient oxygen. Several of the deepest castle wells in the world are in Germany and they include those at Kyffhausen Castle, Königstein Fortress and the Hohenburg in Homberg. In addition there is the well at Stolpen Castle which is the deepest well driven into basalt in the world, according to historic sources there was once a castle well over 197 metres deep at Regenstein Castle near Blankenburg in the Harz Mountains. This was, however, filled in long ago, by comparison, the deepest castle well in England is at Beeston_Castle. Axel W. Gleue, Wie kam das Wasser auf die Burg - Vom Brunnenbau auf Höhenburgen und Bergvesten, verlag Schnell und Steiner, Regensburg,2008, ISBN 978-3-7954-2085-7
Castle well
–
The well at
Königstein Fortress
26.
Riegersburg (castle)
–
Riegersburg Castle is a medieval castle situated on a dormant volcano above the town of Riegersburg in the Austrian state of Styria. The castle is owned by the Princely Family of Liechtenstein and contains a museum with changing exhibitions, Riegersburg Castle is situated at an height of 450 m. The castle was built on a hill which had once been an ancient volcano, the peak is at 482 meters above sea level. The ancient basalt of the hill was used to build the castle, people have been living in the area around Riegersburg for a few thousand years. A large village was founded in the 9th century B. C. with 300 people living here, later, from 15 B. C. until 476 A. D. the region was part of the Roman Empire. In the 3rd and 9th century Bavarians immigrated and Hungarians invaded from the East and it was the beginning of a long time of armed conflicts. The history of the castle begins in the year 1122, the first knight who is known to have lived there is Rudiger von Hohenberg. Over the centuries the castle had many different owners, but only few played an important role, among the later owners is the family of the Walseer who had feud with the sovereign of Styria in 1415. The most important owner was the baroness Katharina Elisabeth von Wechsler, who married Galler, between 1637 and 1653 she finished the castle, making it one of the biggest and strongest castles in the country. It is surrounded by 3 kilometres of walls with 5 gates and 2 trenches, in the 17th century the border with the Ottoman Empire was sometimes only 20 to 25 km away from the castle and the area was troubled by conflicts with the Turks and Hungarians. The castle was a place for the people nearby, sometimes offering refuge inside its walls for a few thousand. Lady Gallerin married three times and had one daughter who married a Count Purgstall, the castle passed to the Purgstall family, who died out around 1800. In 1822, the castle was bought by Sovereign Johann Josef von Liechtenstein and it has belonged to the von Liechtenstein family until the present day. The castle was taken by the 10th Guards Rifle Division of Soviet forces advancing towards Graz on 8 May 1945, the castle is owned by the Princely Family of Liechtenstein, who live down the village in a house. The castle serves as a museum, with 25 out of the 108 rooms being opened for visiting, sixteen of the rooms show the history of Riegersburg Castle and nine deal with witches and sorcerers. This article incorporates information from the equivalent article on the German Wikipedia, Princely Family of Liechtenstein Riegersburg Official website
Riegersburg (castle)
–
Riegersburg Castle seen from the valley below
Riegersburg (castle)
–
Vineyards on the top of the fortified hill, surrounding the castle proper
Riegersburg (castle)
–
Footpath leading to the castle
Riegersburg (castle)
–
Hochburg Riegersburg, the inner stronghold
27.
Styria
–
Styria is a state or Bundesland, located in the southeast of Austria. In area it is the second largest of the nine Austrian federated states and it borders Slovenia and the Austrian states of Upper Austria, Lower Austria, Salzburg, Burgenland, and Carinthia. The capital city is Graz which had 276,526 inhabitants at the beginning of 2015, the March of Styria derived its name from the original seat of its ruling Otakar dynasty, Steyr, in todays Upper Austria. In German, the area is still called Steiermark while in English the Latin name Styria is used, the ancient link between Steyr and Styria is also apparent in their nearly identical coats of arms, a white Panther on a green background. The term Upper Styria used by an Austrian refers to the northern and northwestern parts of the federal-state, the term West Styria is used for the districts to the west of Graz, the districts east of Graz are referred to as East Styria. The western and eastern parts of the district Graz-Umgebung may or may not be considered parts of West and East Styria, the southern parts of the Duchy of Styria, which have formed part of Yugoslavia or Slovenia since 1918, were referred to as Lower Styria. During early Roman times, Styria was inhabited by Celtic tribes, after its conquest by the Romans, the eastern part of what is now Styria was part of Pannonia, while the western one was included in Noricum. During the Barbarian invasions, it was conquered or crossed by the Visigoths, the Huns, the Ostrogoths, the Rugii, the Lombards, the Franks, in 595 the latter were defeated by the Slavs, who thenceforth ruled it. In 1180 Styria separated from the Duchy of Carinthia and became a Grand Duchy of its own, after the hereditary subdivision of the latter, Styria formed the central part of Inner Austria. Styria developed culturally and economically under John, Archduke of Inner Austria between 1809 and 1859, as elsewhere in the developed world, there has been a shift away from the manufacturing sector towards the service sector in Styria. This has had consequences for the industrial regions of upper Styria which have suffered a steady decline in population in recent years. Styria is home to more than 150 clean technology companies, of one dozen are world technology leaders in their field. The revenue of Styrian cleantech companies totals €2.7 billion and this equals to 8 percent of the Gross Regional Product, and is one of the highest concentrations of leading clean technology companies in Europe. The companies have a growth rate of 22 percent per year—well above the worldwide cleantech market growth of 18 percent per year. The region created roughly 2,000 additional green jobs in 2008 alone, the state is divided into 13 districts, one of them a statutory city. Graz however is a stronghold of the left-wing Communist Party, the governor has usually been an ÖVP member. In these elections, the KPÖ also received votes after it had gained much popularity through its role in local politics in Graz during the preceding few years. The two right-wing populist parties, the Freedom Party of Austria and the Alliance for the Future of Austria, gebirgsdivision Robert Stolz, composer born in Graz Getty Kaspers, lead vocals of Dutch band Teach-In, who won the 1975 Eurovision Song Contest
Styria
–
Grüner See
Styria
–
Flag
Styria
–
Historical view of the border between Styria and Carinthia, 1830
Styria
–
View over the vineyards of South-Styria
28.
Lava
–
Lava is the molten rock expelled by a volcano during an eruption. The resulting rock after solidification and cooling is called lava. The molten rock is formed in the interior of planets, including Earth. The source of the heat melts the rock within the earth is geothermal energy. When first erupted from a vent, lava is a liquid usually at temperatures from 700 to 1,200 °C. A lava flow is an outpouring of lava, which is created during a non-explosive effusive eruption. When it has stopped moving, lava solidifies to form igneous rock, the term lava flow is commonly shortened to lava. Although lava can be up to 100,000 times more viscous than water, lava can flow great distances before cooling and solidifying because of its thixotropic, explosive eruptions produce a mixture of volcanic ash and other fragments called tephra, rather than lava flows. The word lava comes from Italian, and is derived from the Latin word labes which means a fall or slide. The first use in connection with extruded magma was apparently in an account written by Francesco Serao on the eruption of Vesuvius between May 14 and June 4,1737. Serao described a flow of lava as an analogy to the flow of water. The composition of almost all lava of the Earths crust is dominated by silicate minerals, mostly feldspars, olivine, pyroxenes, amphiboles, micas, igneous rocks, which form lava flows when erupted, can be classified into three chemical types, felsic, intermediate, and mafic. These classes are primarily chemical, however, the chemistry of lava also tends to correlate with the temperature, its viscosity. Felsic or silicic lavas such as rhyolite and dacite typically form lava spines, most silicic lava flows are extremely viscous, and typically fragment as they extrude, producing blocky autobreccias. Felsic magmas can erupt at temperatures as low as 650 to 750 °C, unusually hot rhyolite lavas, however, may flow for distances of many tens of kilometres, such as in the Snake River Plain of the northwestern United States. Intermediate or andesitic lavas are lower in aluminium and silica, and usually somewhat richer in magnesium, intermediate lavas form andesite domes and block lavas, and may occur on steep composite volcanoes, such as in the Andes. Poorer in aluminium and silica than felsic lavas, and also commonly hotter, greater temperatures tend to destroy polymerized bonds within the magma, promoting more fluid behaviour and also a greater tendency to form phenocrysts. Higher iron and magnesium tends to manifest as a darker groundmass, mafic or basaltic lavas are typified by their high ferromagnesian content, and generally erupt at temperatures in excess of 950 °C
Lava
–
10-metre (33 ft) high
fountain of pāhoehoe lava,
Hawaii, United States
Lava
–
Lava flow during a rift eruption at
Krafla,
Iceland in 1984.
Lava
–
Pāhoehoe and
ʻaʻā lava flows side by side at the
Big Island of Hawaii in September, 2007
Lava
–
Toes of a pāhoehoe advance across a road in
Kalapana on the east rift zone of
Kīlauea Volcano in
Hawaii, United States.
29.
Sand filter
–
Sand filters are used as a step in the water treatment process of water purification. There are three types, rapid sand filters, upward flow sand filters and slow sand filters. All three methods are used extensively in the industry throughout the world. Sand filters can, apart from being used in treatment plants. The history of separation techniques reaches far back, as materials were already in use during ancient periods. Rushes and genista were used to fill sieving vessels that separated solid and liquid materials, furthermore, the Egyptians utilized porous clay vessels to filter drinking water, wine and other liquids. A sand bed filter is a kind of depth filter, in addition, there are passive and active devices for causing solid-liquid separation such as settling tanks, self-cleaning screen filters, hydrocyclones and centrifuges. There are several kinds of depth filter, some employing fibrous material, sand bed filters are an example of a granular loose media depth filter. They are usually used to small amounts of fine solids from aqueous solutions. In addition, they are used to purify the fluid rather than capture the solids as a valuable material. Therefore they find most of their uses in liquid effluent treatment, sand bed filters work by providing the particulate solids with many opportunities to be captured on the surface of a sand grain. As fluid flows through the sand along a tortuous route. They can be captured by one of several mechanisms, Direct collision Van der Waals or London force attraction Surface charge attraction Diffusion. In addition, particulate solids can be prevented from being captured by surface charge repulsion if the charge of the sand is of the same sign as that of the particulate solid. Furthermore, it is possible to dislodge captured particulates although they may be re-captured at a greater depth within the bed, finally, a sand grain that is already contaminated with particulate solids may become more attractive or repel addition particulate solids. In some applications it is necessary to pre-treat the effluent flowing into a bed to ensure that the particulate solids can be captured. They can be operated either with upward flowing fluids or downward flowing fluids the latter being much more usual, for downward flowing devices the fluid can flow under pressure or by gravity alone. Pressure sand bed filters tend to be used in industrial applications, gravity fed units are used in water purification especially drinking water and these filters have found wide use in developing countries
Sand filter
–
Sand filter used for water treatment
30.
Irrigation
–
Irrigation is the method in which a controlled amount of water is supplied to plants at regular intervals for agriculture. It is used to assist in the growing of crops, maintenance of landscapes. Additionally, irrigation also has a few uses in crop production. In contrast, agriculture that only on direct rainfall is referred to as rain-fed or dry land farming. Irrigation systems are used for dust suppression, disposal of sewage. Irrigation is often studied together with drainage, which is the natural or artificial removal of surface and sub-surface water from a given area, Irrigation has been a central feature of agriculture for over 5,000 years and is the product of many cultures. Historically, it was the basis for economies and societies across the globe, archaeological investigation has found evidence of irrigation where the natural rainfall was insufficient to support crops for rainfed agriculture. Ancient Egyptians practiced Basin irrigation using the flooding of the Nile to inundate land plots which had surrounded by dykes. The flood water was held until the sediment had settled before the surplus was returned to the watercourse. The Ancient Nubians developed a form of irrigation by using a device called a sakia. Irrigation began in Nubia some time between the third and second millennium BCE and it largely depended upon the flood waters that would flow through the Nile River and other rivers in what is now the Sudan. In sub-Saharan Africa irrigation reached the Niger River region cultures and civilizations by the first or second millennium BCE and was based on wet season flooding, terrace irrigation is evidenced in pre-Columbian America, early Syria, India, and China. These canals are the earliest record of irrigation in the New World, traces of a canal possibly dating from the 5th millennium BCE were found under the 4th millennium canal. Large scale agriculture was practiced and a network of canals was used for the purpose of irrigation. Ancient Persia as far back as the 6th millennium BCE, where barley was grown in areas where the rainfall was insufficient to support such a crop. The Qanats, developed in ancient Persia in about 800 BCE, are among the oldest known irrigation methods still in use today and they are now found in Asia, the Middle East and North Africa. The system comprises a network of wells and gently sloping tunnels driven into the sides of cliffs. The noria, a wheel with clay pots around the rim powered by the flow of the stream, was first brought into use at about this time
Irrigation
–
Irrigation canal near
Channagiri,
Davangere District,
India
Irrigation
–
Irrigation in a field in New Jersey, United States
Irrigation
–
An
irrigation sprinkler watering a lawn
Irrigation
–
Irrigation canal in
Osmaniye,
Turkey
31.
Filter (water)
–
A water filter removes impurities from water by means of a fine physical barrier, a chemical process or a biological process. Filters cleanse water to different extents for purposes such as providing agricultural irrigation, accessible drinking water, public and private aquaria, filters use sieving, adsorption, ion exchanges, biological metabolite transfer, and other processes to remove unwanted substances from a quantity of water. And unlike a sieve or screen, a filter can potentially remove particles much smaller than the holes through which its water passes. Types of water filters include media filters, screen filters, disk filters, slow sand filter beds, rapid sand filters, cloth filters, some filters use more than one filtration method. An example of this is a multi-barrier system, jug filters can be used for small quantities of drinking water. Some kettles have built-in filters, primarily to reduce limescale buildup, flowmatic cartridge style filters are cylinders 10 inches long by 2.5 inches in diameter. They are made by multiple manufactures and are available in 1-50 micron ratings as well as activated carbon, point-of-use microfiltration devices can be directly installed at water outlets in order to protect users against Legionella spp. Nontuberculous mycobacteria, Escherichia coli and other potentially harmful pathogens by providing a barrier to them and/or minimizing patient exposure. Water filters are used by hikers, aid organizations during humanitarian emergencies, dirty water is pumped via a screen-filtered flexible silicon tube through a specialized filter, ending up in a container. These filters work to remove bacteria, protozoa and microbial cysts that can cause disease, filters may have fine meshes that must be replaced or cleaned, and ceramic water filters must have their outside abraded when they have become clogged with impurities. These water filters should not be confused with devices or tablets that disinfect water which remove or kill viruses such as hepatitis A, each certifies that home water treatment units meet or exceed National Standard Institute/National Science Foundation and Environmental Protection Agency drinking water standards. Certification from these organizations will specify one or both of specific standards. NSF International as it is now known started out as the National Sanitation Foundation in 1944 at the University of Michigan School of Public Health, the NSFs water treatment Device Certification Program requires extensive product testing and unannounced audits of production facilities. As with all filters, follow the instructions for filter use. The term water polishing can refer to any process that removes particulate material. In this sense, water polishing is simply another term for whole house water filtration systems, polishing is also done on a large scale in water reclamation plants. During the 19th and 20th centuries, water filters for domestic water production were divided into slow sand filters. While there were many small-scale water filtration systems prior to 1800, Paisley, the Paisley filter began operation in 1804 and was an early type of slow sand filter
Filter (water)
–
A large-scale
flocculation water filter
Filter (water)
–
A sectional view of a personal water filter
32.
Water purification
–
Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids and gases from contaminated water. The goal is to produce water fit for a specific purpose, the standards for drinking water quality are typically set by governments or by international standards. These standards usually include minimum and maximum concentrations of contaminants, depending on the purpose of water use. Visual inspection cannot determine if water is of appropriate quality, simple procedures such as boiling or the use of a household activated carbon filter are not sufficient for treating all the possible contaminants that may be present in water from an unknown source. Even natural spring water – considered safe for all purposes in the 19th century – must now be tested before determining what kind of treatment. Chemical and microbiological analysis, while expensive, are the way to obtain the information necessary for deciding on the appropriate method of purification. The WHO estimates that 94% of these cases are preventable through modifications to the environment. Simple techniques for treating water at home, such as chlorination, filters, and solar disinfection, reducing deaths from waterborne diseases is a major public health goal in developing countries. Groundwater, The water emerging from deep ground water may have fallen as rain many tens, hundreds. Such water may emerge as springs, artesian springs, or may be extracted from boreholes or wells, deep ground water is generally of very high bacteriological quality, but the water may be rich in dissolved solids, especially carbonates and sulfates of calcium and magnesium. Depending on the strata through which the water has flowed, other ions may also be present including chloride, there may be a requirement to reduce the iron or manganese content of this water to make it acceptable for drinking, cooking, and laundry use. Primary disinfection may also be required, where groundwater recharge is practised, the groundwater may require additional treatment depending on applicable state and federal regulations. Bacteria and pathogen levels are low, but some bacteria. Where uplands are forested or peaty, humic acids can colour the water, many upland sources have low pH which require adjustment. Rivers, canals and low land reservoirs, Low land surface waters will have a significant bacterial load and may also contain algae, suspended solids and a variety of dissolved constituents. Atmospheric water generation is a new technology that can provide high quality drinking water by extracting water from the air by cooling the air, desalination of seawater by distillation or reverse osmosis. Surface Water, Freshwater bodies that are open to the atmosphere and are not designated as groundwater are termed surface waters. The aims of the treatment are to remove unwanted constituents in the water, the choice of method will depend on the quality of the water being treated, the cost of the treatment process and the quality standards expected of the processed water
Water purification
–
Control room and schematics of the water purification plant to
Lac de Bret, Switzerland
Water purification
–
Cutaway view of a typical rapid sand filter
Water purification
–
Slow "artificial" filtration (a variation of
bank filtration) to the ground, Water purification plant Káraný, Czech Republic
Water purification
–
A profile of layers of gravel, sand and fine sand used in a slow sand filter plant.
33.
Algae
–
Algae is an informal term for a large, diverse group of photosynthetic organisms which are not necessarily closely related, and is thus polyphyletic. Included organisms range from unicellular genera, such as Chlorella and the diatoms, to forms, such as the giant kelp. Most are aquatic and autotrophic and lack many of the cell and tissue types, such as stomata, xylem, and phloem. No definition of algae is generally accepted, one definition is that algae have chlorophyll as their primary photosynthetic pigment and lack a sterile covering of cells around their reproductive cells. Some authors exclude all prokaryotes thus do not consider cyanobacteria as algae, Algae constitute a polyphyletic group since they do not include a common ancestor, and although their plastids seem to have a single origin, from cyanobacteria, they were acquired in different ways. Green algae are examples of algae that have primary chloroplasts derived from endosymbiotic cyanobacteria, diatoms and brown algae are examples of algae with secondary chloroplasts derived from an endosymbiotic red alga. Algae exhibit a range of reproductive strategies, from simple asexual cell division to complex forms of sexual reproduction. Algae lack the various structures that characterize land plants, such as the phyllids of bryophytes, rhizoids in nonvascular plants, and the roots, leaves, and other organs found in tracheophytes. Most are phototrophic, although some are mixotrophic, deriving energy both from photosynthesis and uptake of organic carbon either by osmotrophy, myzotrophy, or phagotrophy. Some other heterotrophic organisms, such as the apicomplexans, are derived from cells whose ancestors possessed plastids. Fossilized filamentous algae from the Vindhya basin have been dated back to 1.6 to 1.7 billion years ago, the singular alga is the Latin word for seaweed and retains that meaning in English. Although some speculate that it is related to Latin algēre, be cold, a more likely source is alliga, binding, entwining. The Ancient Greek word for seaweed was φῦκος, which could mean either the seaweed or a red dye derived from it, the Latinization, fūcus, meant primarily the cosmetic rouge. It could be any color, black, red, green, accordingly, the modern study of marine and freshwater algae is called either phycology or algology, depending on whether the Greek or Latin root is used. The name Fucus appears in a number of taxa, most algae contain chloroplasts that are similar in structure to cyanobacteria. Chloroplasts contain circular DNA like that in cyanobacteria and presumably represent reduced endosymbiotic cyanobacteria, however, the exact origin of the chloroplasts is different among separate lineages of algae, reflecting their acquisition during different endosymbiotic events. The table below describes the composition of the three groups of algae. Their lineage relationships are shown in the figure in the upper right, many of these groups contain some members that are no longer photosynthetic
Algae
–
A variety of algae growing on the sea bed in shallow waters
Algae
–
False-color
Scanning electron micrograph of the unicellular
coccolithophore Gephyrocapsa oceanica
Algae
–
The
kelp forest exhibit at the Monterey Bay Aquarium. A three-dimensional, multicellular thallus
Algae
–
Rock lichens in Ireland
34.
Mosquitoes
–
Mosquitoes are small, midge-like flies that constitute the family Culicidae. Females of most species are ectoparasites, whose tube-like mouthparts pierce the skin to consume blood. The word mosquito is Spanish for little fly, thousands of species feed on the blood of various kinds of hosts, mainly vertebrates, including mammals, birds, reptiles, amphibians, and even some kinds of fish. Some mosquitoes also attack invertebrates, mainly other arthropods, though the loss of blood is seldom of any importance to the victim, the saliva of the mosquito often causes an irritating rash that is a serious nuisance. Much more serious though, are the roles of species of mosquitoes as vectors of diseases. The oldest known mosquito with a similar to modern species was found in 79-million-year-old Canadian amber from the Cretaceous. An older sister species with more primitive features was found in Burmese amber that is 90 to 100 million years old, two mosquito fossils have been found that show very little morphological change in modern mosquitoes against their counterpart from 46 million years ago. These fossils are also the oldest ever found to have blood preserved within their abdomens, the Old and New World Anopheles species are believed to have subsequently diverged about 95 million years ago. The mosquito Anopheles gambiae is currently undergoing speciation into the M and S molecular forms, consequently, some pesticides that work on the M form no longer work on the S form. Over 3,500 species of the Culicidae have already been described and they are generally divided into two subfamilies which in turn comprise some 43 genera. These figures are subject to change, as more species are discovered. The two main subfamilies are the Anophelinae and Culicinae, with their genera as shown in the subsection below, the distinction is of great practical importance because the two subfamilies tend to differ in their significance as vectors of different classes of diseases. Roughly speaking, arboviral diseases such as fever and dengue fever tend to be transmitted by Culicine species. Some transmit various species of malaria, but it is not clear that they ever transmit any form of human malaria. Some species do however transmit various forms of filariasis, much as many Simuliidae do, Anopheline mosquitoes, again not necessarily in the genus Anopheles, sometimes bear pathogenic arboviruses, but it is not yet clear that they ever transmit them as effective vectors. However, all the most important vectors of malaria are Anopheline. Anophelinae Culicinae Mosquitoes are members of a family of nematocerid flies, superficially, mosquitoes resemble crane flies and chironomid flies. In particular, the females of species of mosquitoes are blood-eating pests and dangerous vectors of diseases
Mosquitoes
Mosquitoes
–
Image of pitcher plant mosquito
Wyeomyia smithii, showing segmentation and partial anatomy of circulatory system
Mosquitoes
–
An egg raft of a Culex species, partly broken, showing individual egg shapes
Mosquitoes
–
Mosquito larvae and pupa resting at water surface
35.
Rainwater harvesting
–
Rainwater harvesting is the accumulation and deposition of rainwater for reuse on-site, rather than allowing it to run off. Its uses include water for gardens, livestock, irrigation, domestic use with proper treatment, the harvested water can also be used as drinking water, longer-term storage and for other purposes such as groundwater recharge. Rainwater harvesting provides an independent water supply during regional water restrictions and it provides water when there is a drought, can help mitigate flooding of low-lying areas, and reduces demand on wells which may enable groundwater levels to be sustained. It also helps in the availability of water as rainwater is substantially free of salinity. More development and knowledge is required to understand the benefits rainwater harvesting can provide to agriculture, many countries especially those with an arid environment use rainwater harvesting as a cheap and reliable source of clean water. To enhance irrigation in arid environments, ridges of soil are constructed in order to trap and prevent rainwater from running down hills, even in periods of low rainfall, enough water is collected in order for crops to grow. The concentration of contaminants is reduced significantly by diverting the flow of run-off water to waste. Improved water quality can also be obtained by using a floating draw-off mechanism and by using a series of tanks, pre-filtration is a common practice used in the industry to ensure that the water entering the tank is free of large sediment. Pre-filtration is important to keep the system healthy, conceptually, a water supply system should match the quality of water with the end use. However, in most of the world high quality potable water is used for all end uses. This approach wastes money and energy and imposes unnecessary impacts to the environment, Rainwater harvesting systems can range in complexity, from systems that can be installed with minimal skills, to automated systems that require advanced setup and installation. Systems are ideally sized to meet the demand throughout the dry season since it must be big enough to support daily water consumption. Specifically, the rainfall capturing area such as a roof must be large enough to maintain adequate flow. The water storage tank size should be enough to contain the captured water. Before a rainwater harvesting system is built, it is helpful to use digital tools, for instance, if you want to detect if a region has a high rainwater harvesting potential, rainwater harvesting GIS maps can be made using an online interactive tool. Or if you need to estimate how much water is needed to fulfill a communitys water needs, tools like these can save time and money before a commitment to build a system is undertaken, in addition to making the project sustainable and last a long time. Contemporary system designs require an analysis of not only the economic and technical performance of a system, life Cycle Assessment is a methodology used to evaluate the environmental impacts of a precut or systems, from cradle-to-grave of its lifetime. Devkota et al. developed such a methodology for rainwater harvesting, the Economic and Environmental Analysis of Sanitations Technologies, EEAST model evaluates the greenhouse gas emissions and cost of such systems over the lifetime of a variety of building types
Rainwater harvesting
–
Rainwater capture and storage system at the
Monterrey Institute of Technology and Higher Education, Mexico City.
Rainwater harvesting
–
A
cistern for rainwater storage
Rainwater harvesting
–
EEAST Model for LCAs of Rainwater Harvesting Systems.
Rainwater harvesting
–
Ratagul Freshwater Flooded Forest,
Bangladesh
36.
Electric pump
–
A pump is a device that moves fluids, or sometimes slurries, by mechanical action. Pumps can be classified into three groups according to the method they use to move the fluid, direct lift, displacement. Pumps operate by some mechanism, and consume energy to mechanical work by moving the fluid. Pumps operate via many energy sources, including operation, electricity, engines, or wind power, come in many sizes. Single stage pump - When in an only one impeller is revolving then it is called single stage pump. Double/ Multi stage pump - When in a two or more than two impellers are revolving then it is called double/ multi stage pump. In biology, many different types of chemical and bio-mechanical pumps have evolved, mechanical pumps may be submerged in the fluid they are pumping or be placed external to the fluid. Pumps can be classified by their method of displacement into positive displacement pumps, impulse pumps, velocity pumps, gravity pumps, steam pumps, there are two basic types of pumps, positive displacement and centrifugal. Although axial-flow pumps are classified as a separate type, they have essentially the same operating principles as centrifugal pumps. A positive displacement pump makes a move by trapping a fixed amount. Some positive displacement pumps use a cavity on the suction side. Liquid flows into the pump as the cavity on the suction side expands, the volume is constant through each cycle of operation. Positive displacement pumps, unlike centrifugal or roto-dynamic pumps, theoretically can produce the flow at a given speed no matter what the discharge pressure. Thus, positive displacement pumps are constant flow machines, however, a slight increase in internal leakage as the pressure increases prevents a truly constant flow rate. A positive displacement pump must not operate against a closed valve on the side of the pump. A relief or safety valve on the side of the positive displacement pump is therefore necessary. The relief valve can be internal or external, the pump manufacturer normally has the option to supply internal relief or safety valves. The internal valve is only used as a safety precaution
Electric pump
–
A small, electrically powered pump
Electric pump
–
A large, electrically driven pump (electropump) for
waterworks near the
Hengsteysee, Germany
Electric pump
–
Horizontally mounted lobe pump (right) shown with its electric motor (left) and drive-shaft bearing (middle)
Electric pump
–
Old hand water pump (c. 1924) at the Colored School in Alapaha, Georgia, US
37.
Debris
–
Depending on context, debris can refer to a number of different things. The first apparent use of the French word in English is in a 1701 description of the army of Prince Rupert upon its retreat from a battle with the army of Oliver Cromwell, in disaster scenarios, tornados leave behind large pieces of houses and mass destruction overall. This debris also flies around the tornado itself when it is in progress, the tornados winds capture debris it kicks up in its wind orbit, and spins it inside its vortex. The tornados wind radius is larger than the funnel itself, tsunamis and hurricanes also bring large amounts of debris, such as Hurricane Katrina in 2005 and Hurricane Sandy in 2012. Earthquakes rock cities to rubble debris, Geological debris sometimes moves in a stream called a debris flow. In mining, debris called attle usually consists of fragments which contain little or no ore. Marine debris is also called litter or flotsam and jetsam, objects that can constitute marine debris include used automobile tires, detergent bottles, medical wastes, discarded fishing line and nets, soda cans, and bilge waste solids. In addition to being unsightly, it can pose a threat to marine life, boats, swimmers, divers. For example, each year millions of seabirds, sea turtles, fish, as many as 30,000 northern fur seals per year get caught in abandoned fishing nets and either drown or suffocate. Whales mistake plastic bags for squid, and birds may mistake plastic pellets for fish eggs, at other times, animals accidentally eat the plastic while feeding on natural food. The largest concentration of debris is the Great Pacific Garbage Patch. Marine debris most commonly originates from land-based sources, various international agencies are currently working to reduce marine debris levels around the world. In meteorology, debris usually applies to the remains of human habitation and this debris is also commonly referred to as storm debris. Storm debris commonly consists of roofing material, downed tree limbs, downed signs, downed lines and poles. Storm debris can become a problem immediately after a storm, in that it often blocks access to individuals. This material frequently exists in large quantities that disposing of it becomes a serious issue for a community. In addition, storm debris is often hazardous by its nature, since, for example. Space usually refers to the remains of spacecraft that have fallen to Earth or are still orbiting Earth
Debris
–
Obsidian debris (talus), Obsidian Dome,
California.
Debris
–
Marine debris washed ashore on
Hawaii
Debris
–
A child plays on an abandoned tank outside
Phnom Penh,
Cambodia in 1991
38.
Water tank
–
A water tank is a container for storing water. Water tank parameters include the design of the tank, and choice of construction materials. Various materials are used for making a water tank, plastics, fiberglass, concrete, stone, earthen pots also function as water storages. Water tanks are an efficient way to developing countries to store clean water. Throughout history, wood, ceramic and stone tanks have used as water tanks. These containers were all naturally occurring and some man made and a few of these tanks are still in service, the Indus Valley Civilization made use of granaries and water tanks. Medieval castles needed water tanks for the defenders to withstand a siege, a wooden water tank found at the Año Nuevo State Reserve was restored to functionality after being found completely overgrown with ivy. It had been built in 1884, chemical contact tank of FDA and NSF polyethylene construction, allows for retention time for chemical treatment chemicals to contact with product water. Elevated water tank, also known as a tower, will create a pressure at the ground-level outlet of 1 kPa per 10.2 cm or 1 psi per 2.31 feet of elevation. Thus a tank elevated to 20 metres creates about 200 kPa, vertical cylindrical dome top tanks may hold from 200 litres or fifty gallons to several million gallons. Horizontal cylindrical tanks are used for transport because their low-profile creates a low center of gravity helping to maintain equilibrium for the transport vehicle. A Hydro-pneumatic tank is typically a horizontal pressurized storage tank, pressurizing this reservoir of water creates a surge free delivery of stored water into the distribution system. By design a tank or container should do no harm to the water. Water is susceptible to a number of ambient negative influences, including bacteria, viruses, algae, changes in pH, the contamination can come from a variety of origins including piping, tank construction materials, animal and bird feces, mineral and gas intrusion. A correctly designed water tank works to address and mitigate these negative effects, a safety based news article linked copper poisoning as originating from a plastic tank. The article indicated that rainwater was collected and stored in a plastic tank, the water was then brought into homes with copper piping, the copper was released by the high acid rainwater and caused poisoning in humans. It is important to note that since the tank is an inert container. The American Water Works Association is a reservoir of water tank knowledge, the AWWAs site provides scientific resources with which the reader will be able to develop an informed perspective on which to make decisions regarding their water tank requirements
Water tank
–
Water tank used in Municipal Water Treatment Plant Houston
Texas
Water tank
–
Water Tank Towers, featured in
Kuwait City
Water tank
–
Water tank from 1876 in
Hanover, Germany
Water tank
–
Stone water tank in a castle courtyard,
Saxony, Germany
39.
Chlorine
–
Chlorine is a chemical element with symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the table and its properties are mostly intermediate between them. Chlorine is a gas at room temperature. It is an extremely reactive element and a strong oxidising agent, among the elements, it has the highest electron affinity, the most common compound of chlorine, sodium chloride, has been known since ancient times. Around 1630, chlorine gas was first synthesised in a chemical reaction, Carl Wilhelm Scheele wrote a description of chlorine gas in 1774, supposing it to be an oxide of a new element. In 1809, chemists suggested that the gas might be an element, and this was confirmed by Sir Humphry Davy in 1810. Because of its reactivity, all chlorine in the Earths crust is in the form of ionic chloride compounds. It is the second-most abundant halogen and twenty-first most abundant chemical element in Earths crust and these crustal deposits are nevertheless dwarfed by the huge reserves of chloride in seawater. Elemental chlorine is produced from brine by electrolysis. The high oxidising potential of chlorine led to the development of commercial bleaches and disinfectants. As a common disinfectant, elemental chlorine and chlorine-generating compounds are used directly in swimming pools to keep them clean. Elemental chlorine at high concentrations is extremely dangerous and poisonous for all living organisms, in the form of chloride ions, chlorine is necessary to all known species of life. Other types of compounds are rare in living organisms. In the upper atmosphere, chlorine-containing organic molecules such as chlorofluorocarbons have been implicated in ozone depletion, small quantities of elemental chlorine are generated by oxidation of chloride to hypochlorite in neutrophils as part of the immune response against bacteria. Its importance in food was very well known in antiquity and was sometimes used as payment for services for Roman generals. Around 1630, chlorine was recognized as a gas by the Flemish chemist, the element was first studied in detail in 1774 by Swedish chemist Carl Wilhelm Scheele, and he is credited with the discovery. He called it dephlogisticated muriatic acid air since it is a gas and he failed to establish chlorine as an element, mistakenly thinking that it was the oxide obtained from the hydrochloric acid. He named the new element within this oxide as muriaticum, in 1809, Joseph Louis Gay-Lussac and Louis-Jacques Thénard tried to decompose dephlogisticated muriatic acid air by reacting it with charcoal to release the free element muriaticum
Chlorine
–
A glass container filled with chlorine gas
Chlorine
–
Chlorine, liquefied under a pressure of 7.4 bar at room temperature, displayed in a quartz ampule embedded in
acrylic glass.
Chlorine
–
Carl Wilhelm Scheele
Chlorine
–
Liquid chlorine analysis
40.
Toilet
–
A toilet is a sanitation fixture used for the storing or disposal of human urine and feces. In developed countries, different forms of flush toilets are common. These are connected to a system in most urban areas. In many developing countries, especially in areas, dry toilets such as pit latrines. Dry toilets are usually placed in outhouses, i. e. not inside the dwelling, in many countries, private homes are designed with the flush toilet and the bath or shower in the same room, the bathroom, to simplify plumbing and reduce cost. Other cultures find this insanitary, and have one room for body-washing, public toilets are installed where their use is expected on a permanent basis, while portable toilets may be brought in for large but temporary gatherings. Chemical toilets are used in various contexts, such as passenger trains. Serious waterborne diseases such as cholera and diarrhea occur when open defecation or poor sanitation permits human waste to pollute water supplies, historically, sanitation has been a concern from the earliest stages of human settlements. The Indus Valley Civilization is particularly notable for its extensive sanitation works, for the most part, early cities emptied their waste into rivers or seas manually or via open ditches. Sanitation in ancient Rome was notably advanced, as were some of the reredorters of medieval monasteries, a precursor to the modern flush toilet system was designed by John Harington in 1596 but did not become common until the late 19th century. Even London, at time the worlds largest city, did not require indoor toilets in its building codes until after the First World War. A typical flush toilet is a ceramic bowl connected on the up side to a cistern that enables rapid filling with water, when a toilet is flushed, the sewage should flow into a septic tank or into a system connected to a Sewage treatment plant. However, in countries, this treatment does not happen. The water in the bowl is connected to a pipe shaped like an upside-down U. One side of the U channel is arranged as a tube longer than the water in the bowl is high. The siphon tube connects to the drain, the bottom of the drain pipe limits the height of the water in the bowl before it flows down the drain. The water in the acts as a barrier to sewer gas entering the building. Sewer gas escapes through a vent pipe attached to the sewer line, the amount of water used by conventional flush toilets usually makes up a significant portion of personal daily water usage
Toilet
–
Toilets come in various shapes and forms around the world: Top:
flush toilet in a home in Australia, with dispenser for
toilet paper and a
toilet brush in its holder; Bottom: Low-cost
dry toilet (
Arborloo at a school in Zimbabwe)
Toilet
Toilet
–
Flush toilet bowl (sitting style)
Toilet
–
A poorly maintained pit latrine in Yaounde,
Cameroon
41.
Bacteria
–
Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods, Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, Bacteria also live in symbiotic and parasitic relationships with plants and animals. Most bacteria have not been characterised, and only half of the bacterial phyla have species that can be grown in the laboratory. The study of bacteria is known as bacteriology, a branch of microbiology, There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water. There are approximately 5×1030 bacteria on Earth, forming a biomass which exceeds that of all plants, Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of bodies and bacteria are responsible for the putrefaction stage in this process. In March 2013, data reported by researchers in October 2012, was published and it was suggested that bacteria thrive in the Mariana Trench, which with a depth of up to 11 kilometres is the deepest known part of the oceans. Other researchers reported related studies that microbes thrive inside rocks up to 580 metres below the sea floor under 2.6 kilometres of ocean off the coast of the northwestern United States. According to one of the researchers, You can find microbes everywhere—theyre extremely adaptable to conditions, the vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system, though many are beneficial particularly in the gut flora. However several species of bacteria are pathogenic and cause diseases, including cholera, syphilis, anthrax, leprosy. The most common fatal diseases are respiratory infections, with tuberculosis alone killing about 2 million people per year. In developed countries, antibiotics are used to treat infections and are also used in farming, making antibiotic resistance a growing problem. Once regarded as constituting the class Schizomycetes, bacteria are now classified as prokaryotes. Unlike cells of animals and other eukaryotes, bacterial cells do not contain a nucleus and these evolutionary domains are called Bacteria and Archaea. The ancestors of modern bacteria were unicellular microorganisms that were the first forms of life to appear on Earth, for about 3 billion years, most organisms were microscopic, and bacteria and archaea were the dominant forms of life. In 2008, fossils of macroorganisms were discovered and named as the Francevillian biota, however, gene sequences can be used to reconstruct the bacterial phylogeny, and these studies indicate that bacteria diverged first from the archaeal/eukaryotic lineage. Bacteria were also involved in the second great evolutionary divergence, that of the archaea, here, eukaryotes resulted from the entering of ancient bacteria into endosymbiotic associations with the ancestors of eukaryotic cells, which were themselves possibly related to the Archaea
Bacteria
–
Had'n
Bacteria
Bacteria
–
A
biofilm of thermophilic bacteria in the outflow of
Mickey Hot Springs,
Oregon, approximately 20 mm thick.
Bacteria
–
Helicobacter pylori electron micrograph, showing multiple flagella on the cell surface
42.
Greenhouse
–
A greenhouse is a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown. These structures range in size from small sheds to industrial-sized buildings, a miniature greenhouse is known as a cold frame. The interior of a greenhouse exposed to sunlight becomes significantly warmer than the ambient temperature. Many commercial glass greenhouses or hothouses are high tech production facilities for vegetables or flowers, the glass greenhouses are filled with equipment including screening installations, heating, cooling, lighting, and may be controlled by a computer to optimize conditions for plant growth. Different techniques are used to evaluate optimality-degrees and comfort ratio of greenhouse micro-climate in order to reduce production risk prior to cultivation of a specific crop. The idea of growing plants in environmentally controlled areas has existed since Roman times, the Roman emperor Tiberius ate a cucumber-like vegetable daily. The Roman gardeners used artificial methods of growing to have it available for his every day of the year. Cucumbers were planted in wheeled carts which were put in the sun daily, the cucumbers were stored under frames or in cucumber houses glazed with either oiled cloth known as specularia or with sheets of selenite, according to the description by Pliny the Elder. In the 13th century, greenhouses were built in Italy to house the plants that explorers brought back from the tropics. They were originally called giardini botanici, Greenhouses in which the temperature could be manually manipulated first appeared in 15th century Korea. The 15th century treatise, the Sanga Yorok, contains descriptions of greenhouses designed to regulate the temperature and humidity requirements of plants, the concept of greenhouses also appeared in the Netherlands and then England in the 17th century, along with the plants. Some of these early attempts required enormous amounts of work to close up at night or to winterize, there were serious problems with providing adequate and balanced heat in these early greenhouses. Today, the Netherlands has many of the largest greenhouses in the world, the French botanist Charles Lucien Bonaparte is often credited with building the first practical modern greenhouse in Leiden, Holland, during the 1800s to grow medicinal tropical plants. Originally only on the estates of the rich, the growth of the science of botany caused greenhouses to spread to the universities, the French called their first greenhouses orangeries, since they were used to protect orange trees from freezing. As pineapples became popular, pineries, or pineapple pits, were built, experimentation with the design of greenhouses continued during the 17th century in Europe, as technology produced better glass and construction techniques improved. The greenhouse at the Palace of Versailles was an example of their size and elaborateness, it was more than 150 metres long,13 metres wide, a good example of this trend is the pioneering Kew Gardens. Other large greenhouses built in the 19th century included the New York Crystal Palace, Munich’s Glaspalast, in Japan, the first greenhouse was built in 1880 by Samuel Cocking, a British merchant who exported herbs. In the 20th century, the dome was added to the many types of greenhouses
Greenhouse
–
Victoria amazonica (giant Amazon waterlilies) in a large greenhouse at the
Saint Petersburg Botanical Garden,
Russia.
Greenhouse
–
The Eden Project, in
Cornwall,
England.
Greenhouse
–
The
Royal Greenhouses of Laeken,
Brussels,
Belgium. An example of 19th-century greenhouse architecture
Greenhouse
–
Cucumbers reached to the ceiling in a greenhouse in
Richfield, Minnesota, where market gardeners grew a wide variety of produce for sale in Minneapolis, circa 1910
43.
Firefighting
–
Firefighting is the act of attempting to prevent the spread of and extinguish significant unwanted fires in buildings, vehicles, woodland, etc. A firefighter suppresses and extinguishes fires to protect lives and to prevent the destruction of property, firefighters may provide other services to their communities. Additional hazards include falls and structural collapse that can exacerbate the problems entailed in a toxic environment, to combat some of these risks, firefighters carry self-contained breathing equipment. The first step in an operation is reconnaissance to search for the origin of the fire, to identify the specific risks. Fires can be extinguished by water, fuel or oxidant removal, the earliest known firefighters were in the city of Rome. In 60 A. D. emperor Nero established a Corps of Vigils to protect Rome after a disastrous fire and it consisted of 7,000 people equipped with buckets and axes, and they fought fires and served as police. In the 4th century B. C. an Alexandrian Greek named Ctesibius made a force pump called a siphona. As water rose in the chamber, it compressed the air inside, in the 16th century, syringes were also used as firefighting tools, the larger ones being mounted on wheels. Another traditional method that survived was the brigade, involving two lines of people formed between the water source and the fire. Typically, men in one of the lines would pass along the full buckets of water toward the fire while in the other women and children would pass back the empty buckets to be refilled. In the 17th century, fire engines were made, notably in Amsterdam, ancient Rome did not have municipal firefighters. Instead, private individuals relied on their slaves or supporters to take action and they would not only form bucket brigades or attempt to smother smaller fires, but would also demolish or raze nearby buildings to slow the spread of the fire. However, there is no mention of fires being extinguished, rather they were contained and burned themselves out, ancient Rome did not have an organized firefighting force until the Vigiles were formed in the reign of Augustus. Prior to the Great Fire of London in 1666, some parishes in the UK had begun to organize rudimentary firefighting, after the Great Fire, Nicholas Barbon introduced the first fire insurance. In order to reduce costs, Barbon also formed his own fire brigade. By the start of the 1800s, insured buildings were identified with a badge or mark, in 1833, these companies in London merged to form The London Fire Company Establishment. In World War II, the Auxiliary Fire Service and later the National Fire Service were established to supplement local fire services, at that time, there was no countrywide standard for firefighting terms, procedures, ranks, or equipment. These were standardized after World War II, in January 1608, a fire destroyed many of the colonists provisions and lodgings in Jamestown, Virginia
Firefighting
–
Firefighters at a major fire involving an abandoned convent in Canada, 2006
Firefighting
–
Firefighting in
Jyväskylä, Finland
Firefighting
–
Bulgarian firefighters in action, 1930s
Firefighting
–
A hose team training to fight an aircraft fire aboard a US aircraft carrier, 2006
44.
Water supply
–
Water supply is the provision of water by public utilities commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes. However, about 14% did not have access to a water source and had to use unprotected wells or springs, canals. A clean water supply - in particular water that is not polluted with fecal matter from lack of sanitation - is the single most important determinant of public health. Destruction of water supply and/or sanitation infrastructure after major catastrophes poses the threat of severe epidemics of waterborne diseases. Water supply systems get water from a variety of locations after appropriate treatment, including groundwater, surface water, the water treatment steps include, in most cases, purification, disinfection through chlorination and sometimes fluoridation. Treated water then flows by gravity or is pumped to reservoirs. In the U. S, the single family home uses about 69.3 gallons of water per day. This includes toilet use, washing machine use, showers, baths, tap use, many of the 3.5 billion people having access to piped water receive a poor or very poor quality of service, especially in developing countries where about 80% of the world population lives. Water supply service quality has many dimensions, continuity, water quality, pressure, and it is estimated that about half of the population of developing countries receives water on an intermittent basis. Drinking water quality has a micro-biological and a physico-chemical dimension, there are thousands of parameters of water quality. For more details, please see the entries on water quality, water treatment. Water pressures vary in different locations of a distribution system, Water mains below the street may operate at higher pressures, with a pressure reducer located at each point where the water enters a building or a house. In poorly managed systems, water pressure can be so low as to only in a trickle of water or so high that it leads to damage to plumbing fixtures. Typical UK pressures are 4–5 bar for an urban supply, however, some people can get over eight bars or below one bar. A single iron main pipe may cross a valley, it will have the same nominal pressure. So people at the bottom of a 100-foot hill will get about 3 bars more than those at the top, the effective pressure also varies because of the pressure loss due to supply resistance even for the same static pressure. An urban consumer may have 5 metres of 15 mm pipe running from the main, so the kitchen tap flow will be fairly unrestricted. A rural consumer may have a kilometre of rusted and limed 22 mm iron pipe, for this reason, the UK domestic water system has traditionally employed a cistern feed system, where the incoming supply is connected to the kitchen sink and also a header/storage tank in the attic
Water supply
–
Water from a
tap - supplied by a pipe
Water supply
–
Water from taps - supplied by a truck
Water supply
–
Shipot, an underground water source in
Ukraine
Water supply
–
A young girl collects clean water from a communal water supply in
Kawempe,
Uganda.
45.
Southeast Asian
–
Southeast Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies near the intersection of geological plates, with seismic and volcanic activity. Southeast Asia consists of two regions, Mainland Southeast Asia, also known historically as Indochina, comprising Vietnam, Laos, Cambodia, Thailand, Myanmar. Maritime Southeast Asia, comprising Indonesia, East Malaysia, Singapore, Philippines, East Timor, Brunei, Cocos Islands, definitions of Southeast Asia vary, but most definitions include the area represented by the countries listed below. All of the states are members of the Association of Southeast Asian Nations, the area, together with part of South Asia, was widely known as the East Indies or simply the Indies until the 20th century. Sovereignty issues exist over some territories in the South China Sea, Papua New Guinea has stated that it might join ASEAN, and is currently an observer. Southeast Asia is geographically divided into two subregions, namely Mainland Southeast Asia and Maritime Southeast Asia, Mainland Southeast Asia includes, Maritime Southeast Asia includes, The Andaman and Nicobar Islands of India are geographically considered part of Southeast Asia. Eastern Bangladesh and the Seven Sister States of India are culturally part of Southeast Asia, the eastern half of Indonesia and East Timor are considered to be biogeographically part of Oceania. Homo sapiens reached the region by around 45,000 years ago, homo floresiensis also lived in the area up until 12,000 years ago, when they became extinct. Austronesian people, who form the majority of the population in Indonesia, Malaysia, Brunei, East Timor. Solheim and others have shown evidence for a Nusantao maritime trading network ranging from Vietnam to the rest of the archipelago as early as 5000 BC to 1 AD. The peoples of Southeast Asia, especially those of Austronesian descent, have been seafarers for thousands of years and their vessels, such as the vinta, were ocean-worthy. Magellans voyage records how much more manoeuvrable their vessels were, as compared to the European ships, Passage through the Indian Ocean aided the colonisation of Madagascar by the Austronesian people, as well as commerce between West Asia and Southeast Asia. Gold from Sumatra is thought to have reached as far west as Rome and this was later replaced by Hinduism. Theravada Buddhism soon followed in 525, in the 15th century, Islamic influences began to enter. This forced the last Hindu court in Indonesia to retreat to Bali, in Mainland Southeast Asia, Burma, Cambodia and Thailand retained the Theravada form of Buddhism, brought to them from Sri Lanka. This type of Buddhism was fused with the Hindu-influenced Khmer culture, very little is known about Southeast Asian religious beliefs and practices before the advent of Indian merchants and religious influences from the 2nd century BCE onwards. Prior to the 13th century CE, Hinduism and Buddhism were the religions in Southeast Asia
Southeast Asian
–
A golden vestment similar to those worn by the Hindu
Brahmin Caste, found in Butuan (
Philippines) Archeological Digs. This artefact shows the influence of Indian culture in Southeast Asia, also through trade.
Southeast Asian
Southeast Asian
–
Angkor Wat in
Siem Reap,
Cambodia
Southeast Asian
–
Kampung Laut Mosque in
Tumpat is one of the oldest mosques in Malaysia, dating to the early 18th century.
46.
Malaysia
–
Malaysia is a federal constitutional monarchy located in Southeast Asia. Peninsular Malaysia shares a land and maritime border with Thailand and maritime borders with Singapore, Vietnam, East Malaysia shares land and maritime borders with Brunei and Indonesia and a maritime border with the Philippines and Vietnam. The capital city is Kuala Lumpur, while Putrajaya is the seat of the federal government, with a population of over 30 million, Malaysia is the 44th most populous country. The southernmost point of continental Eurasia, Tanjung Piai, is in Malaysia, located in the tropics, Malaysia is one of 17 megadiverse countries on earth, with large numbers of endemic species. Malaysia has its origins in the Malay kingdoms present in the area which, from the 18th century, the first British territories were known as the Straits Settlements, whose establishment was followed by the Malay kingdoms becoming British protectorates. The territories on Peninsular Malaysia were first unified as the Malayan Union in 1946, Malaya was restructured as the Federation of Malaya in 1948, and achieved independence on 31 August 1957. Malaya united with North Borneo, Sarawak, and Singapore on 16 September 1963 to become Malaysia, less than two years later in 1965, Singapore was expelled from the federation. The country is multi-ethnic and multi-cultural, which plays a role in politics. About half the population is ethnically Malay, with minorities of Malaysian Chinese, Malaysian Indians. The constitution declares Islam the state religion while allowing freedom of religion for non-Muslims, the government system is closely modelled on the Westminster parliamentary system and the legal system is based on common law. The head of state is the king, known as the Yang di-Pertuan Agong and he is an elected monarch chosen from the hereditary rulers of the nine Malay states every five years. The head of government is the prime minister, since its independence, Malaysia has had one of the best economic records in Asia, with its GDP growing at an average of 6. 5% per annum for almost 50 years. The economy has traditionally been fuelled by its resources, but is expanding in the sectors of science, tourism, commerce. Today, Malaysia has a newly industrialised market economy, ranked third largest in Southeast Asia, the name Malaysia is a combination of the word Malay and the Latin-Greek suffix -sia/-σία. The word melayu in Malay may derive from the Tamil words malai and ur meaning mountain and city, land, malayadvipa was the word used by ancient Indian traders when referring to the Malay Peninsula. Whether or not it originated from these roots, the word melayu or mlayu may have used in early Malay/Javanese to mean to steadily accelerate or run. This term was applied to describe the current of the river Melayu in Sumatra. The name was adopted by the Melayu Kingdom that existed in the seventh century on Sumatra
Malaysia
–
"Malaysia" used as a label for the
Malay Archipelago on a 1914 map from a United States atlas
Malaysia
–
Flag
Malaysia
–
The Dutch fleet battling with the Portuguese armada as part of the
Dutch–Portuguese War in 1606 to gain control of
Malacca.
Malaysia
–
Statue of
Francis Light in the
Fort Cornwallis of Penang, marking the first step of
British expansion in the 18th century over the Malay Archipelago.
47.
Indonesia
–
Indonesia, officially the Republic of Indonesia, is a unitary sovereign state and transcontinental country located mainly in Southeast Asia with some territories in Oceania. Situated between the Indian and Pacific oceans, it is the worlds largest island country, with more than seventeen thousand islands. At 1,904,569 square kilometres, Indonesia is the worlds 14th-largest country in terms of area and worlds 7th-largest country in terms of combined sea. It has an population of over 260 million people and is the worlds fourth most populous country. The worlds most populous island, Java, contains more than half of the countrys population, Indonesias republican form of government includes an elected legislature and president. Indonesia has 34 provinces, of which five have Special Administrative status and its capital and countrys most populous city is Jakarta, which is also the most populous city in Southeast Asia and the second in Asia. The country shares land borders with Papua New Guinea, East Timor, other neighbouring countries include Singapore, Vietnam, the Philippines, Australia, Palau, and the Indian territory of the Andaman and Nicobar Islands. Despite its large population and densely populated regions, Indonesia has vast areas of wilderness that support the second highest level of biodiversity. The country has abundant natural resources like oil and natural gas, tin, copper, agriculture mainly produces rice, palm oil, tea, coffee, cacao, medicinal plants, spices and rubber. Indonesias major trading partners are Japan, United States, China, the Indonesian archipelago has been an important region for trade since at least the 7th century, when Srivijaya and then later Majapahit traded with China and India. Local rulers gradually absorbed foreign cultural, religious and political models from the early centuries CE, Indonesian history has been influenced by foreign powers drawn to its natural resources. Indonesia consists of hundreds of native ethnic and linguistic groups. The largest – and politically dominant – ethnic group are the Javanese, a shared identity has developed, defined by a national language, ethnic diversity, religious pluralism within a Muslim-majority population, and a history of colonialism and rebellion against it. Indonesias national motto, Bhinneka Tunggal Ika, articulates the diversity that shapes the country, Indonesias economy is the worlds 16th largest by nominal GDP and the 8th largest by GDP at PPP, the largest in Southeast Asia, and is considered an emerging market and newly industrialised country. Indonesia has been a member of the United Nations since 1950, Indonesia is a member of the G20 major economies and World Trade Organization. The name Indonesia derives from the Greek name of the Indós, the name dates to the 18th century, far predating the formation of independent Indonesia. In 1850, George Windsor Earl, an English ethnologist, proposed the terms Indunesians—and, his preference, in the same publication, one of his students, James Richardson Logan, used Indonesia as a synonym for Indian Archipelago. However, Dutch academics writing in East Indies publications were reluctant to use Indonesia, they preferred Malay Archipelago, the Netherlands East Indies, popularly Indië, the East, and Insulinde
Indonesia
–
A
Borobudur ship carved on
Borobudur, c. 800 CE. Indonesian outrigger boats may have made trade voyages to the east coast of Africa as early as the 1st century CE.
Indonesia
–
Flag
Indonesia
–
The
nutmeg plant is native to Indonesia's
Banda Islands.
Indonesia
–
Tan Malaka, Indonesian philosopher, guerilla, and national hero.
48.
Water closet
–
Flush toilets can be designed for sitting or for squatting, in the case of squat toilets. The opposite of a toilet is a dry toilet, which uses no water for flushing. Flush toilets usually incorporate an S, U, J, or P shaped bend that causes the water in the bowl to collect and act as a seal against sewer gases. Since flush toilets are not designed to handle waste on site, their drain pipes must be connected to waste conveyance. When a toilet is flushed, the flows into a septic tank or sewage system. A flush toilet may be called a lavatory, water closet, loo, comfort room. A flush toilet is different from a urinal, which is designed to handle only liquid waste, or from a bidet, a typical flush toilet is a vitreous, ceramic bowl containing water, plus plumbing to rapidly fill it with more water. The water in the bowl is connected to a hollow drain pipe shaped like an upside-down U connecting the drain. One side of the U channel is arranged as a siphon tube longer than the water in the bowl is high. The siphon tube connects to the drain, the top of the upside-down U-shaped drain pipe limits the height of the water in the bowl before it flows down the drain. If water is poured slowly into the bowl it simply flows over the rim of the upside-down U, the standing water in the bowl acts as a barrier to sewer gas coming out of the sewer through the drain, and also as a receptacle for waste. Sewer gas is vented through a vent pipe attached to the sewer line. When a user flushes a toilet, a flapper valve opens. This rapid influx from the causes the swirling water in the bowl to rapidly rise. This full siphon tube starts the toilets siphonic action, the siphon action quickly “pulls” nearly all of the water and waste in the bowl and the on-rushing tank water down the drain — it flushes. When most of the water has drained out of the bowl, the toilet then gives its characteristic gurgle as the siphonic action ceases and no more water flows out of the toilet. After flushing, the valve in the water tank closes, water lines and valves connected to the water supply refill the toilet tank. Then the toilet is again ready for use, at the top of the toilet bowl is a rim with many angled drain holes that are fed from the tank, which fill, rinse, and induce swirling in the bowl when it is flushed
Water closet
–
Flush toilets can be designed for sitting or for
squatting: Top: A flush toilet designed for sitting and cistern; Bottom: A squat toilet, with water tank for flushing (
Wuhan, China)
Water closet
Water closet
–
A flush toilet bowl during the flushing action
Water closet
–
Toilet with an elevated
cistern of water and a chain attached to the tank to release water and flush the waste away
49.
Flushing trough
–
A flushing trough is a long cistern which serves several toilet pans. It is designed to more frequent flushing. Flushing troughs are used in places such as schools, colleges, public toilets, factories. Siphonic action is started in the way as an ordinary flushing cistern. As the water is siphoned, the level falls only inside a timing box designed to permit the required flush. When the timing box has been emptied of water, air enters through an air pipe to break the siphonic action, the timing box refills with water through a hole in its side. The cistern is then ready to flush, the earliest example is from 1936. It was manufactured by Alisa and was intended to serve schools or places where toilets would be of high use, the cistern was made of cast iron and could serve 2,3 or 4 toilets. To flush the cistern, the chain that connects to the siphon is over the front of the cistern although water may sometimes slightly splash over the top and this was later adapted to hang over the back. A concealed variant was also located in a duct behind the wall to prevent vandalism. Maintenance could be carried out without entering the public space, a third version passes the chain through the cistern. The chain extended through a higher than the water level and overflow level. Most flushing troughs had a life span than a standard single cistern. The main disadvantage is that requires all WCs served by the Trough to be unavailable. Such troughs were used by local councils in the UK into the 1980s
Flushing trough
–
A Flushing Trough
Flushing trough
–
An older Trough from the 1930s. Note that the chain hangs over the front and not the back.
Flushing trough
–
A Trough that can still be found in Plymouth, Devon, UK
