1.
Canyon
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A canyon or gorge is a deep cleft between escarpments or cliffs resulting from the erosive activity of a river over geologic timescales. A canyon may also refer to a rift between two peaks, such as those in ranges including the Rocky Mountains, the Alps. Usually a river or stream and erosion carve out such splits between mountains, examples of mountain-type canyons are Provo Canyon in Utah or Yosemite National Park in Californias Sierra Nevada. Canyons within mountains, or gorges that have an opening on one side are called box canyons. Slot canyons are very narrow canyons, often with smooth walls, steep-sided valleys in the seabed of the continental slope underwater are referred to as submarine canyons. Unlike canyons on land, submarine canyons are thought to be formed by turbidity currents, the word canyon is Spanish in origin, with the same meaning. The word canyon is used in North America while the words gorge and ravine are used in Europe and Oceania, though gorge. In the United States, place names generally use canyon in the southwest and gorge in the northeast, in Canada, a gorge is usually narrow while a ravine is more open and often wooded. The military-derived word defile is occasionally used in the United Kingdom, most canyons were formed by a process of long-time erosion from a plateau or table-land level. The cliffs form because harder rock strata that are resistant to erosion, Canyons are much more common in arid than in wet areas because physical weathering has a more localized effect in arid zones. The wind and water from the combine to erode and cut away less resistant materials such as shales. The freezing and expansion of water also serves to help form canyons, water seeps into cracks between the rocks and freezes, pushing the rocks apart and eventually causing large chunks to break off the canyon walls, in a process known as frost wedging. Canyon walls are formed of resistant sandstones or granite. Sometimes large rivers run through canyons as the result of geological uplift. These are called entrenched rivers, because they are unable to alter their course. In the United States, the Colorado River in the Southwest, Canyons often form in areas of limestone rock. As limestone is soluble to an extent, cave systems form in the rock. When these collapse, a canyon is left, as in the Mendip Hills in Somerset and Yorkshire Dales in Yorkshire, England
2.
Danube
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The Danube is Europes second-longest river, after the Volga River, and also the longest river in the European Union region. It is located in Central and Eastern Europe, the Danube was once a long-standing frontier of the Roman Empire, and today flows through 10 countries, more than any other river in the world. Its drainage basin extends into nine more countries, the Latin name Dānuvius is one of a number of Old European river names derived from a Proto-Indo-European *dānu. Other river names from the root include the Dunajec, Dzvina/Daugava, Don, Donets, Dnieper, Dniestr. In Rigvedic Sanskrit, dānu means fluid, drop, in Avestan, in the Rigveda, Dānu once appears as the mother of Vrtra. Known to the ancient Greeks as the Istros a borrowing from a Daco-Thracian name meaning strong, in Latin, the Danube was variously known as Danubius, Danuvius or as Ister. The Dacian/Thracian name was Donaris for the upper Danube and Istros for the lower Danube, the Thraco-Phrygian name was Matoas, the bringer of luck. The Latin name is masculine, as are all its Slavic names, the German Donau is feminine, as it has been re-interpreted as containing the suffix -ouwe wetland. Classified as a waterway, it originates in the town of Donaueschingen, in the Black Forest of Germany, at the confluence of the rivers Brigach. The Danube then flows southeast for about 2,800 km, passing through four capital cities before emptying into the Black Sea via the Danube Delta in Romania and its drainage basin extends into nine more. The highest point of the basin is the summit of Piz Bernina at the Italy–Switzerland border. The land drained by the Danube extends into other countries. Many Danubian tributaries are important rivers in their own right, navigable by barges, from its source to its outlet into the Black Sea, its main tributaries are, The Danube flows through many cities, including four national capitals, more than any other river in the world. Danube remains a mountain river until Passau, with average bottom gradient 0. 0012%. Middle Section, From Devín Gate to Iron Gate, at the border of Serbia and Romania, the riverbed widens and the average bottom gradient becomes only 0. 00006%. Lower Section, From Iron Gate to Sulina, with average gradient as little as 0. 00003%, about 60 of its tributaries are also navigable. In 1994 the Danube was declared one of ten Pan-European transport corridors, routes in Central, the amount of goods transported on the Danube increased to about 100 million tons in 1987. In 1999, transport on the river was difficult by the NATO bombing of three bridges in Serbia during the Kosovo War
3.
Serbia
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Serbia, officially the Republic of Serbia, is a sovereign state situated at the crossroads of Central and Southeast Europe, covering the southern part of the Pannonian Plain and the central Balkans. Relative to its territory, it is a diverse country distinguished by a transitional character, situated along cultural, geographic, climatic. Serbia numbers around 7 million residents, and its capital, Belgrade, following the Slavic migrations to the Balkans from the 6th century onwards, Serbs established several states in the early Middle Ages. The Serbian Kingdom obtained recognition by Rome and the Byzantine Empire in 1217, in the early 19th century, the Serbian Revolution established the nation-state as the regions first constitutional monarchy, which subsequently expanded its territory. During the breakup of Yugoslavia, Serbia formed a union with Montenegro which dissolved peacefully in 2006, in 2008 the parliament of the province of Kosovo unilaterally declared independence, with mixed responses from the international community. Serbia is a member of organizations such as the UN, CoE, OSCE, PfP, BSEC. An EU membership candidate since 2012, Serbia has been negotiating its EU accession since January 2014, the country is acceding to the WTO and is a militarily neutral state. Serbia is an income economy with dominant service sector, followed by the industrial sector. The country ranks high on the Social Progress Index as well as the Global Peace Index, relatively high on the Human Development Index, located at the crossroads between Central and Southern Europe, Serbia is found in the Balkan peninsula and the Pannonian Plain. Serbia lies between latitudes 41° and 47° N, and longitudes 18° and 23° E. The country covers a total of 88,361 km2, which places it at 113th place in the world, with Kosovo excluded, the area is 77,474 km2. Its total border length amounts to 2,027 km, all of Kosovos border with Albania, Macedonia and Montenegro are under control of the Kosovo border police. The Pannonian Plain covers the third of the country while the easternmost tip of Serbia extends into the Wallachian Plain. The terrain of the part of the country, with the region of Šumadija at its heart. Mountains dominate the third of Serbia. Dinaric Alps stretch in the west and the southwest, following the flow of the rivers Drina, the Carpathian Mountains and Balkan Mountains stretch in a north–south direction in eastern Serbia. Ancient mountains in the southeast corner of the country belong to the Rilo-Rhodope Mountain system, elevation ranges from the Midžor peak of the Balkan Mountains at 2,169 metres to the lowest point of just 17 metres near the Danube river at Prahovo. The largest lake is Đerdap Lake and the longest river passing through Serbia is the Danube, the climate of Serbia is under the influences of the landmass of Eurasia and the Atlantic Ocean and Mediterranean Sea
4.
Romania
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Romania is a sovereign state located in Southeastern Europe. It borders the Black Sea, Bulgaria, Ukraine, Hungary, Serbia and it has an area of 238,391 square kilometres and a temperate-continental climate. With over 19 million inhabitants, the country is the member state of the European Union. Its capital and largest city, Bucharest, is the sixth-largest city in the EU, the River Danube, Europes second-longest river, rises in Germany and flows in a general southeast direction for 2,857 km, coursing through ten countries before emptying into Romanias Danube Delta. The Carpathian Mountains, which cross Romania from the north to the southwest are marked by one of their tallest peaks, Moldoveanu, modern Romania was formed in 1859 through a personal union of the Danubian Principalities of Moldavia and Wallachia. The new state, officially named Romania since 1866, gained independence from the Ottoman Empire in 1877, at the end of World War I, Transylvania, Bukovina and Bessarabia united with the sovereign Kingdom of Romania. Romania lost several territories, of which Northern Transylvania was regained after the war, following the war, Romania became a socialist republic and member of the Warsaw Pact. After the 1989 Revolution, Romania began a transition back towards democracy and it has been a member of NATO since 2004, and part of the European Union since 2007. A strong majority of the population identify themselves as Eastern Orthodox Christians and are speakers of Romanian. The cultural history of Romania is often referred to when dealing with artists, musicians, inventors. For similar reasons, Romania has been the subject of notable tourist attractions, Romania derives from the Latin romanus, meaning citizen of Rome. The first known use of the appellation was attested in the 16th century by Italian humanists travelling in Transylvania, Moldavia, after the abolition of serfdom in 1746, the word rumân gradually fell out of use and the spelling stabilised to the form român. Tudor Vladimirescu, a leader of the early 19th century. The use of the name Romania to refer to the homeland of all Romanians—its modern-day meaning—was first documented in the early 19th century. The name has been officially in use since 11 December 1861, in English, the name of the country was formerly spelt Rumania or Roumania. Romania became the predominant spelling around 1975, Romania is also the official English-language spelling used by the Romanian government. The Neolithic-Age Cucuteni area in northeastern Romania was the region of the earliest European civilization. Evidence from this and other sites indicates that the Cucuteni-Trypillian culture extracted salt from salt-laden spring water through the process of briquetage
5.
Hydroelectricity
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Hydroelectricity is electricity produced from hydropower. In 2015 hydropower generated 16. 6% of the total electricity and 70% of all renewable electricity. Hydropower is produced in 150 countries, with the Asia-Pacific region generating 33 percent of global hydropower in 2013, China is the largest hydroelectricity producer, with 920 TWh of production in 2013, representing 16.9 percent of domestic electricity use. The cost of hydroelectricity is relatively low, making it a source of renewable electricity. The hydro station consumes no water, unlike coal or gas plants, the average cost of electricity from a hydro station larger than 10 megawatts is 3 to 5 U. S. cents per kilowatt-hour. With a dam and reservoir it is also a source of electricity since the amount produced by the station can be changed up or down very quickly to adapt to changing energy demands. Once a hydroelectric complex is constructed, the project produces no direct waste, Hydropower has been used since ancient times to grind flour and perform other tasks. In the mid-1770s, French engineer Bernard Forest de Bélidor published Architecture Hydraulique which described vertical-, by the late 19th century, the electrical generator was developed and could now be coupled with hydraulics. The growing demand for the Industrial Revolution would drive development as well, in 1878 the worlds first hydroelectric power scheme was developed at Cragside in Northumberland, England by William George Armstrong. It was used to power an arc lamp in his art gallery. The old Schoelkopf Power Station No.1 near Niagara Falls in the U. S. side began to produce electricity in 1881. The first Edison hydroelectric power station, the Vulcan Street Plant, began operating September 30,1882, in Appleton, Wisconsin, by 1886 there were 45 hydroelectric power stations in the U. S. and Canada. By 1889 there were 200 in the U. S. alone, at the beginning of the 20th century, many small hydroelectric power stations were being constructed by commercial companies in mountains near metropolitan areas. Grenoble, France held the International Exhibition of Hydropower and Tourism with over one million visitors, by 1920 as 40% of the power produced in the United States was hydroelectric, the Federal Power Act was enacted into law. The Act created the Federal Power Commission to regulate hydroelectric power stations on federal land, as the power stations became larger, their associated dams developed additional purposes to include flood control, irrigation and navigation. Federal funding became necessary for development and federally owned corporations, such as the Tennessee Valley Authority. Hydroelectric power stations continued to become larger throughout the 20th century, Hydropower was referred to as white coal for its power and plenty. Hoover Dams initial 1,345 MW power station was the worlds largest hydroelectric station in 1936
6.
Dam
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A dam is a barrier that impounds water or underground streams. Reservoirs created by not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture. Hydropower is often used in conjunction with dams to generate electricity, a dam can also be used to collect water or for storage of water which can be evenly distributed between locations. Dams generally serve the purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. The word dam can be traced back to Middle English, and before that, from Middle Dutch, the first known appearance of dam occurs in 1165. However, there is one village, Obdam, that is mentioned in 1120. The word seems to be related to the Greek word taphos, so the word should be understood as dike from dug out earth. The names of more than 40 places from the Middle Dutch era such as Amsterdam and Rotterdam, early dam building took place in Mesopotamia and the Middle East. Dams were used to control the level, for Mesopotamias weather affected the Tigris. The earliest known dam is the Jawa Dam in Jordan,100 kilometres northeast of the capital Amman and this gravity dam featured an originally 9-metre-high and 1 m-wide stone wall, supported by a 50 m-wide earth rampart. The structure is dated to 3000 BC, the Ancient Egyptian Sadd-el-Kafara Dam at Wadi Al-Garawi, located about 25 km south of Cairo, was 102 m long at its base and 87 m wide. The structure was built around 2800 or 2600 BC as a dam for flood control. During the Twelfth Dynasty in the 19th century BC, the Pharaohs Senosert III, Amenemhat III, two dams called Ha-Uar running east-west were built to retain water during the annual flood and then release it to surrounding lands. The lake called Mer-wer or Lake Moeris covered 1,700 km2 and is today as Berkat Qaroun. One of the wonders of the ancient world was the Great Dam of Marib in Yemen. Repairs were carried out during various periods, most important around 750 BC and these extensive works were not actually finalized until 325 AD and allowed the irrigation of 25,000 acres. By the mid-late 3rd century BC, an intricate water-management system within Dholavira in modern-day India was built, the system included 16 reservoirs, dams and various channels for collecting water and storing it. Eflatun Pınar is a Hittite dam and spring temple near Konya and it is thought to be from the time of the Hittite empire between the 15th and 13th century BC
7.
Carpathian Mountains
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The Carpathian Mountains or Carpathians are a mountain range system forming an arc roughly 1,500 km long across Central and Eastern Europe, making them the second-longest mountain range in Europe. The Carpathians and their foothills also have many thermal and mineral waters, the Carpathians consist of a chain of mountain ranges that stretch in an arc from the Czech Republic in the northwest through Slovakia, Poland, Hungary and Ukraine to Romania and Serbia. The highest range within the Carpathians is the Tatras, on the border of Slovakia and Poland, the second-highest range is the Southern Carpathians in Romania, where the highest peaks exceed 2,500 m. The divisions of the Carpathians are usually in three sections, Western Carpathians — Czech Republic, Poland, and Slovakia. Eastern Carpathians — southeastern Poland, eastern Slovakia, Ukraine, Romania, the term Outer Carpathians is frequently used to describe the northern rim of the Western and Eastern Carpathians. The most important cities in or near the Carpathians are, Bratislava and Košice in Slovakia, Kraków in Poland, Cluj-Napoca, Sibiu and Braşov in Romania, and Uzhhorod in Ukraine. In modern times, the range is called Karpaty in Czech, Polish, Slovak and Карпати in Ukrainian, Carpați in Romanian, Karpaten in German, Kárpátok in Hungarian and Karpati or Карпати in Serbian. Although the toponym was recorded already by Ptolemy in the 2nd century CE, for instance, Havasok was its medieval Hungarian name, Rus and Romanian chronicles referred to it as Hungarian Mountains. The archaic Polish word karpa meant rugged irregularities, underwater obstacles/rocks, the more common word skarpa means a sharp cliff or other vertical terrain. In late Roman documents, the Eastern Carpathian Mountains were referred to as Montes Sarmatici, the Western Carpathians were called Carpates, a name that is first recorded in Ptolemys Geographia. In the Scandinavian Hervarar saga, which relates ancient Germanic legends about battles between Goths and Huns, the name Karpates appears in the predictable Germanic form as Harvaða fjöllum, inter Alpes Huniae et Oceanum est Polonia by Gervase of Tilbury, has described in his Otia Imperialia in 1211. Thirteenth- to fifteenth-century Hungarian documents named the mountains Thorchal, Tarczal or less frequently Montes Nivium, the northwestern Carpathians begin in Slovakia and southern Poland. They surround Transcarpathia and Transylvania in a semicircle, sweeping towards the southeast. The total length of the Carpathians is over 1,500 km, the highest altitudes of the Carpathians occur where they are widest. The Carpathians cover an area of 190,000 km2 and, after the Alps, although commonly referred to as a mountain chain, the Carpathians do not actually form an uninterrupted chain of mountains. Rather, they consist of several orographically and geologically distinctive groups, the Carpathians at their highest altitude are only as high as the middle region of the Alps, with which they share a common appearance, climate, and flora. The Carpathians are separated from the Alps by the Danube, the two ranges meet at only one point, the Leitha Mountains at Bratislava. The river also separates them from the Balkan Mountains at Orşova in Romania, the valley of the March and Oder separates the Carpathians from the Silesian and Moravian chains, which belong to the middle wing of the great Central Mountain System of Europe
8.
Balkan Mountains
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The Balkan mountain range is a mountain range in the eastern part of the Balkan Peninsula. The Balkan range runs 560 km from the Vrashka Chuka Peak on the border between Bulgaria and Serbia eastward through central Bulgaria to Cape Emine on the Black Sea, the highest peaks of the Balkan Mountains are in central Bulgaria. The highest peak is Botev at 2,376 m, which makes the range the third highest in the country, after Rila. The mountains are the source of the name of the Balkan Peninsula, the mountain range forms the watershed between the Black Sea and Aegean Sea catchment areas, with the exception of an area in west, where it is crossed by the spectacular Iskar Gorge. The karst relief determines the number of caves, including Magura, featuring the most important and extended European post-Palaeolithic cave painting, Ledenika, Saeva dupka, Bacho Kiro. The most notable formation are the Belogradchik Rocks in the west. There are several important protected areas, Central Balkan National Park, Vrachanski Balkan Nature Park, Bulgarka Nature Park and Sinite Kamani Nature Park, the Balkan Mountains are remarkable for their flora and fauna. Edelweiss grows there in the region of Kozyata stena, some of the most striking landscapes are included in the Central Balkan National Park with steep cliffs, the highest waterfalls in the Balkan Peninsula and lush vegetation. There are a number of important nature reserves such as Chuprene, Kozyata stena, most of Europes large mammals inhabit the area including the brown bear, wolf, boar, chamois and deer. The Balkan Mountains played a role in the history of Bulgaria since its foundation in 681 AD. It is believed the name was brought to the region in the 7th century by Bulgars who applied it to the area, in Bulgarian, the word balkan means mountain. It may have derived from the Persian bālkāneh or bālākhāna, meaning high, above, the name is still preserved in Central Asia with the Balkan Daglary and the Balkan Province of Turkmenistan. In Turkish balkan means a chain of wooded mountains In the Antiquity and the Middle Ages the mountains were known by their Thracian name, scholars consider that Haemus is believed that the name is derived from a Thracian word *saimon, mountain ridge. The name of the place where the range meets the Black Sea, other names used to refer to the mountains in different time periods include Aemon, Haemimons, Hem, Emus, the Slavonic Matorni gori and the Turkish Kodzhabalkan. Geologically, the Balkan Mountains are a part of the Alp-Himalayan chain that stretches across most of Europe. It can be divided into two parts, the main Balkan Chain and the Pre-Balkans to the north, which intrude slightly into the Danubian Plain, the range consists of around 30 portions called mountains. The Eastern Balkan Mountains from the Vratnik Pass to Cape Emine with a length of 160 kilometres, the eastern Balkan Mountains forms the lowest part of the range. The Balkan Mountains form a divide between the rivers flowing to the Danube in the north and those flowing to the Aegean Sea in the south
9.
Archaeology
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Archaeology, or archeology, is the study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, architecture, biofacts or ecofacts, Archaeology can be considered both a social science and a branch of the humanities. In North America, archaeology is considered a sub-field of anthropology, archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. Archaeology as a field is distinct from the discipline of palaeontology, Archaeology is particularly important for learning about prehistoric societies, for whom there may be no written records to study. Prehistory includes over 99% of the human past, from the Paleolithic until the advent of literacy in societies across the world, Archaeology has various goals, which range from understanding culture history to reconstructing past lifeways to documenting and explaining changes in human societies through time. The discipline involves surveying, excavation and eventually analysis of data collected to learn more about the past, in broad scope, archaeology relies on cross-disciplinary research. Archaeology developed out of antiquarianism in Europe during the 19th century, Archaeology has been used by nation-states to create particular visions of the past. Nonetheless, today, archaeologists face many problems, such as dealing with pseudoarchaeology, the looting of artifacts, a lack of public interest, the science of archaeology grew out of the older multi-disciplinary study known as antiquarianism. Antiquarians studied history with attention to ancient artifacts and manuscripts. Tentative steps towards the systematization of archaeology as a science took place during the Enlightenment era in Europe in the 17th and 18th centuries, in Europe, philosophical interest in the remains of Greco-Roman civilization and the rediscovery of classical culture began in the late Middle Age. Antiquarians, including John Leland and William Camden, conducted surveys of the English countryside, one of the first sites to undergo archaeological excavation was Stonehenge and other megalithic monuments in England. John Aubrey was a pioneer archaeologist who recorded numerous megalithic and other monuments in southern England. He was also ahead of his time in the analysis of his findings and he attempted to chart the chronological stylistic evolution of handwriting, medieval architecture, costume, and shield-shapes. Excavations were also carried out in the ancient towns of Pompeii and Herculaneum and these excavations began in 1748 in Pompeii, while in Herculaneum they began in 1738. The discovery of entire towns, complete with utensils and even human shapes, however, prior to the development of modern techniques, excavations tended to be haphazard, the importance of concepts such as stratification and context were overlooked. The father of archaeological excavation was William Cunnington and he undertook excavations in Wiltshire from around 1798, funded by Sir Richard Colt Hoare. Cunnington made meticulous recordings of neolithic and Bronze Age barrows, one of the major achievements of 19th century archaeology was the development of stratigraphy. The idea of overlapping strata tracing back to successive periods was borrowed from the new geological and paleontological work of scholars like William Smith, James Hutton, the application of stratigraphy to archaeology first took place with the excavations of prehistorical and Bronze Age sites
10.
The Times
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The Times is a British daily national newspaper based in London, England. It began in 1785 under the title The Daily Universal Register, the Times and its sister paper The Sunday Times are published by Times Newspapers, since 1981 a subsidiary of News UK, itself wholly owned by News Corp. The Times and The Sunday Times do not share editorial staff, were founded independently and have only had common ownership since 1967 and its news and its editorial comment have in general been carefully coordinated, and have at most times been handled with an earnest sense of responsibility. While the paper has admitted some trivia to its columns, its emphasis has been on important public affairs treated with an eye to the best interests of Britain. To guide this treatment, the editors have for long periods been in touch with 10 Downing Street. In these countries, the newspaper is often referred to as The London Times or The Times of London, although the newspaper is of national scope, in November 2006 The Times began printing headlines in a new font, Times Modern. The Times was printed in broadsheet format for 219 years, the Sunday Times remains a broadsheet. The Times had a daily circulation of 446,164 in December 2016, in the same period. An American edition of The Times has been published since 6 June 2006 and it has been heavily used by scholars and researchers because of its widespread availability in libraries and its detailed index. A complete historical file of the paper, up to 2010, is online from Gale Cengage Learning. The Times was founded by publisher John Walter on 1 January 1785 as The Daily Universal Register, Walter had lost his job by the end of 1784 after the insurance company where he was working went bankrupt because of the complaints of a Jamaican hurricane. Being unemployed, Walter decided to set a new business up and it was in that time when Henry Johnson invented the logography, a new typography that was faster and more precise. Walter bought the patent and to use it, he decided to open a printing house. The first publication of the newspaper The Daily Universal Register in Great Britain was 1 January 1785, unhappy because people always omitted the word Universal, Ellias changed the title after 940 editions on 1 January 1788 to The Times. In 1803, Walter handed ownership and editorship to his son of the same name, the Times used contributions from significant figures in the fields of politics, science, literature, and the arts to build its reputation. For much of its life, the profits of The Times were very large. Beginning in 1814, the paper was printed on the new steam-driven cylinder press developed by Friedrich Koenig, in 1815, The Times had a circulation of 5,000. Thomas Barnes was appointed editor in 1817
11.
Whirlpool
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A whirlpool is a body of swirling water produced by the meeting of opposing currents. The vast majority of whirlpools are not very powerful and very small whirlpools can easily be seen when a bath or a sink is draining, more powerful ones in seas or oceans may be termed maelstroms. Vortex is the term for any whirlpool that has a downdraft. Smaller whirlpools also appear at the base of waterfalls and can also be observed downstream from manmade structures such as weirs. In the case of waterfalls, like Niagara Falls, these whirlpools can be quite strong. Moskstraumen is a system of whirlpools in the open seas in the Lofoten Islands off the Norwegian coast. It is the second strongest whirlpool in the world with flow currents reaching speeds as high as 32 km/h and it finds mention in several books and movies. The maelstrom of Saltstraumen is the Earths strongest maelstrom, and is located close to the Arctic Circle,33 km round the bay on the Highway 17, south-east of the city of Bodø, Norway. The strait at its narrowest is 150 m in width and water funnels through the four times a day. It is estimated that 400 million cubic meters of water passes the narrow strait during this event, the water is creamy in colour and most turbulent during high tide, which is witnessed by thousands of tourists. It reaches speeds of 40 km/h, with speed of about 13 km/h. As navigation is dangerous in this only a small slot of time is available for large ships to pass through. Its impressive strength is caused by the worlds strongest tide occurring in the location during the new. A narrow channel of 3 km length connects the outer Saltfjord with its extension, the Corryvreckan is a narrow strait between the islands of Jura and Scarba, in Argyll and Bute, on the northern side of the Gulf of Corryvreckan, Scotland. It is the third-largest whirlpool in the world, though it was initially classified as non-navigable by the British navy it was later categorized as extremely dangerous. A documentary team from Scottish independent producers Northlight Productions once threw a mannequin into the Corryvreckan with a life jacket, the mannequin was swallowed and spat up far down current with a depth gauge reading of 262 metres with evidence of being dragged along the bottom for a great distance. Old Sow whirlpool is located between Deer Island, New Brunswick, Canada, and Moose Island, Eastport, Maine and it is given the epithet pig-like as it makes a screeching noise when the vortex is at its full fury. The smaller whirlpools around this Old Sow are known as Piglets. the Naruto whirlpools are located in the Naruto Strait near Awaji Island in Japan, which have speeds of 26 km/h
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