1.
Moldova
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Moldova, officially the Republic of Moldova (Romanian, Republica Moldova, listen, is a landlocked country in Eastern Europe, bordered by Romania to the west and Ukraine to the north, east, and south. In 1856, southern Bessarabia was returned to Moldavia, but Russian rule was restored over the whole of the region in 1878, Bessarabia remained a province of the Russian Empire until 1917, when during the Russian Revolution it became an autonomous and then nominally independent Moldavian Democratic Republic. In 1918, following a vote of its assembly, Bessarabia united with the Kingdom of Romania, the decision was disputed by Soviet Russia, which in 1924, created within the Ukrainian SSR, on a territory east of Bessarabia, a so-called Moldavian Autonomous Soviet Socialist Republic. In 1940, as a consequence of the Molotov–Ribbentrop Pact, Romania was compelled to cede Bessarabia to the Soviet Union, the Soviets decided to split the region between a newly established Moldavian Soviet Socialist Republic and the Ukrainian SSR. The Moldavian SSR included two-thirds of the territory of Bessarabia, on 27 August 1991, as part of the dissolution of the Soviet Union, the Moldavian SSR declared independence and took the name Moldova. The current Constitution of Moldova was adopted in 1994, the strip of the Moldovan territory on the east bank of the Dniester river has been under the de facto control of the breakaway government of Transnistria since 1990. Its economy is the poorest in Europe in per capita terms, Moldova is a parliamentary republic with a president as head of state and a prime minister as head of government. The name Moldova derives from the Moldova River, the valley of this served as a political centre at the time of the foundation of the Principality of Moldavia in 1359. The origin of the name of the river remains unclear, the dogs name, given to the river, extended to the Principality. For a short time in the 1990s, at the founding of the Commonwealth of Independent States, after the dissolution of the Soviet Union, the country began to use the Romanian name, Moldova. Officially, the name Republic of Moldova is designated by the United Nations, in 2010, Oldowan flint tools were discovered at Bayraki that are 800, 000–1.2 million years old. This demonstrates that humans were present in Moldova during the early Paleolithic era. The inhabitants of this civilization, which lasted roughly from 5500 to 2750 BC, practiced agriculture, raised livestock, hunted, in antiquity, Moldovas territory was inhabited by Dacian tribes. Between the 1st and 7th centuries AD, the south was intermittently under the Roman, and then Byzantine Empires. The Principality of Moldavia, established in 1359, was bounded by the Carpathian Mountains in the west, the Dniester River in the east, and the Danube River and Black Sea to the south. Its territory comprised the territory of the Republic of Moldova, the eastern eight counties of Romania. Like the present-day republic and Romanias north-eastern region, it was known to the locals as Moldova, Moldavia was invaded repeatedly by Crimean Tatars and, beginning in the 15th century, by the Turks. In 1538, the principality became a tributary to the Ottoman Empire, the title used in the document of 6 July 1600 was The King of the country of Romania, Ardeal and of all of Moldavia
2.
Runway
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According to the International Civil Aviation Organization, a runway is a defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft. Runways may be a surface or a natural surface. Runways are named by a number between 01 and 36, which is generally the magnetic azimuth of the heading in decadegrees. This heading differs from true north by the magnetic declination. A runway numbered 09 points east, runway 18 is south, runway 27 points west, when taking off from or landing on runway 09, a plane would be heading 90°. A runway can normally be used in both directions, and is named for each separately, e. g. runway 33 in one direction is runway 15 when used in the other. The two numbers usually differ by 18, Runway Zero Three Left becomes Runway Two One Right when used in the opposite direction. In some countries, if parallel runways are too close to each other, at large airports with four or more parallel runways some runway identifiers are shifted by 10 degrees to avoid the ambiguity that would result with more than three parallel runways. For example, in Los Angeles, this results in runways 6L, 6R, 7L. At Dallas/Fort Worth International Airport, there are five parallel runways, named 17L, 17C, 17R, 18L, for clarity in radio communications, each digit in the runway name is pronounced individually, runway three six, runway one four, etc. A leading zero, for example in runway zero six or runway zero one left, is included for all ICAO, however, most U. S. civil aviation airports drop the leading zero as required by FAA regulation. This also includes some military airfields such as Cairns Army Airfield and this American anomaly may lead to inconsistencies in conversations between American pilots and controllers in other countries. It is very common in a such as Canada for a controller to clear an incoming American aircraft to, for example, runway 04. In flight simulation programs those of American origin might apply U. S. usage to airports around the world, for example, runway 05 at Halifax will appear on the program as the single digit 5 rather than 05. Runway designations change over time because the magnetic poles slowly drift on the Earths surface, depending on the airport location and how much drift takes place, it may be necessary over time to change the runway designation. As runways are designated with headings rounded to the nearest 10 degrees, for example, if the magnetic heading of a runway is 233 degrees, it would be designated Runway 23. If the magnetic heading changed downwards by 5 degrees to 228, if on the other hand the original magnetic heading was 226, and the heading decreased by only 2 degrees to 224, the runway should become Runway 22. Because the drift itself is slow, runway designation changes are uncommon
3.
Concrete
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Concrete is a composite material composed of coarse aggregate bonded together with a fluid cement that hardens over time. Most concretes used are lime-based concretes such as Portland cement concrete or concretes made with other hydraulic cements, when aggregate is mixed together with dry Portland cement and water, the mixture forms a fluid slurry that is easily poured and molded into shape. The cement reacts chemically with the water and other ingredients to form a matrix that binds the materials together into a durable stone-like material that has many uses. Often, additives are included in the mixture to improve the properties of the wet mix or the finished material. Most concrete is poured with reinforcing materials embedded to provide tensile strength, famous concrete structures include the Hoover Dam, the Panama Canal, and the Roman Pantheon. The earliest large-scale users of technology were the ancient Romans. The Colosseum in Rome was built largely of concrete, and the dome of the Pantheon is the worlds largest unreinforced concrete dome. Today, large concrete structures are made with reinforced concrete. After the Roman Empire collapsed, use of concrete became rare until the technology was redeveloped in the mid-18th century, today, concrete is the most widely used man-made material. The word concrete comes from the Latin word concretus, the passive participle of concrescere, from con-. Perhaps the earliest known occurrence of cement was twelve years ago. A deposit of cement was formed after an occurrence of oil shale located adjacent to a bed of limestone burned due to natural causes and these ancient deposits were investigated in the 1960s and 1970s. On a human timescale, small usages of concrete go back for thousands of years and they discovered the advantages of hydraulic lime, with some self-cementing properties, by 700 BC. They built kilns to supply mortar for the construction of houses, concrete floors. The cisterns were kept secret and were one of the reasons the Nabataea were able to thrive in the desert, some of these structures survive to this day. In the Ancient Egyptian and later Roman eras, it was re-discovered that adding volcanic ash to the mix allowed it to set underwater, similarly, the Romans knew that adding horse hair made concrete less liable to crack while it hardened, and adding blood made it more frost-resistant. Crystallization of strätlingite and the introduction of pyroclastic clays creates further fracture resistance, german archaeologist Heinrich Schliemann found concrete floors, which were made of lime and pebbles, in the royal palace of Tiryns, Greece, which dates roughly to 1400–1200 BC. Lime mortars were used in Greece, Crete, and Cyprus in 800 BC, the Assyrian Jerwan Aqueduct made use of waterproof concrete
4.
International airport
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An international airport is an airport that offers customs and immigration facilities for passengers travelling between countries. International airports often also host domestic flights, some, such as Frankfurt Airport in Germany are very large, others such as Faaā International Airport in Tahiti, are quite small. Buildings, operations and management have become increasingly sophisticated since the mid 20th century, detailed technical standards have been developed to ensure safety and common coding systems implemented to provide global consistency. The physical structures that serve millions of passengers and flights are among the most complex. In August 1919, Hounslow Heath Aerodrome, in London, England was the first airport to operate scheduled international commercial services and it was closed and supplanted by Croydon Airport in March 1920. In the United States, Douglas Municipal Airport in Arizona became the first international airport of the Americas in 1928, the precursors to international airports were airfields or aerodromes. In the early days of international flights, there was limited infrastructure, four-engined land planes being unavailable for over-water operations to international destinations, thus/therefore flying boats became part of the solution. At the far end of the longest international route, on-water landing areas were found in such as Surabaya. In Sydney, Rose Bay, New South Wales, was chosen as the landing area. International airports sometimes serve military as well as commercial purposes and their viability is also affected by technological developments, other international airports, such as Kai Tak Airport in Hong Kong, have been decommissioned and replaced when they reached capacity or technological advances rendered them inadequate. Airports may also be regarded as emblematic of national pride and so the design may be architecturally ambitious, an example is the planned New Mexico City international airport, intended to replace an airport that has reached capacity. Airports can be towered or non-towered, depending on air traffic density, because of high capacity and busy airspace, many international airports have air traffic control located on site. Construction of the expressway included the construction of two bridges and the Ma Wan viaduct on Ma Wan island to connect the bridges, each bridge carries rail and automobile traffic. International airports have commercial relationships with and provide services to airlines, many also serve as hubs, or places where non-direct flights may land and passengers may switch planes, while others serve primarily direct point-to-point flights. This affects airport design factors, including the number and placement of terminals as well as the flow of passengers, an airport specializing in point-to-point transit can have international and domestic terminals, each in their separate building equipped with separate baggage handling facilities. In a hub airport, however, spaces and services are shared, technical standards for safety and operating procedures at international airports are set by international agreements. The International Air Transport Association, formed in 1945, is the association of the airline companies, the International Civil Aviation Organization is a body of the United Nations succeeding earlier international committees going back to 1903. These two organizations served to create regulations over airports which the airports themselves had no authority to debate and this eventually sparked an entire subject of air travel politics
5.
Bucharest
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Bucharest is the capital and largest city of Romania, as well as its cultural, industrial, and financial centre. It is located in the southeast of the country, at 44°25′57″N 26°06′14″E, on the banks of the Dâmbovița River, less than 60 km north of the Danube River, Bucharest was first mentioned in documents in 1459. It became the capital of Romania in 1862 and is the centre of Romanian media, culture and its architecture is a mix of historical, interbellum, communist-era and modern. In the period between the two World Wars, the citys elegant architecture and the sophistication of its elite earned Bucharest the nickname of Little Paris. Although buildings and districts in the city centre were heavily damaged or destroyed by war, earthquakes. In recent years, the city has been experiencing an economic, in 2016, the historical city centre was listed as endangered by the World Monuments Watch. According to the 2011 census,1,883,425 inhabitants live within the city limits, the urban area extends beyond the limits of Bucharest proper and has a population of about 1.9 million people. Adding the satellite towns around the area, the proposed metropolitan area of Bucharest would have a population of 2.27 million people. According to Eurostat, Bucharest has an urban zone of 2,183,091 residents. According to unofficial data, the population is more than 3 million, Bucharest is the sixth-largest city in the European Union by population within city limits, after London, Berlin, Madrid, Rome, and Paris. Economically, Bucharest is the most prosperous city in Romania and is one of the industrial centres. The city has big convention facilities, educational institutes, cultural venues, traditional shopping arcades, the Romanian name București has an uncertain origin. Tradition connects the founding of Bucharest with the name of Bucur, who was a prince, an outlaw, a fisherman, in Romanian, the word stem bucurie means joy, and it is believed to be of Dacian origin. Other etymologies are given by scholars, including the one of an Ottoman traveler, Evliya Çelebi. A native or resident of Bucharest is called a Bucharester, Bucharests history alternated periods of development and decline from the early settlements in antiquity until its consolidation as the national capital of Romania late in the 19th century. First mentioned as the Citadel of București in 1459, it became the residence of the famous Wallachian prince Vlad III the Impaler, the Ottomans appointed Greek administrators to run the town from the 18th century. A short-lived revolt initiated by Tudor Vladimirescu in 1821 led to the end of the rule of Constantinople Greeks in Bucharest, the Old Princely Court was erected by Mircea Ciobanul in the mid-16th century. Under subsequent rulers, Bucharest was established as the residence of the royal court
6.
TAROM
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Compania Națională de Transporturi Aeriene Române TAROM S. A. doing business as TAROM, is the flag carrier and oldest currently operating airline of Romania, based in Otopeni near Bucharest. Its headquarters and its main hub are at Henri Coandă International Airport and it is currently the largest airline operating in Romania based on international destinations, international flights and the second largest measured by fleet size and passengers carried. The brand name is an acronym for Romanian, Transporturile Aeriene Române, over ninety-seven percent of TAROM is owned by the Romanian Government. The airline transported almost 2.4 million passengers in 2015, the airline joined SkyTeam on 25 June 2010. The history of Romanian National Air Transport Company can be traced back from 1920, the airline used French-built Potez 15 aircraft for its passenger/mail service between Paris and Bucharest via several cities in Central Europe. In 1925, the city of Galați became the first destination in Romania served by regular flights followed, from 24 June 1926, by a service to Iași. Ten de Havilland DH.9 and five Ansaldo A.300, in addition to the Potez aircraft, in 1928 the airline changed its name to SNNA. In 1930, the company adopted the name LARES while 1937 saw the merger of LARES with its competitor, domestic operations were started from Bucharest on 1 February 1946, when TARS took over all air services and aircraft from LARES. Over the following decade, the companys Soviet share was purchased by Romanian government and, on 18 September 1954, by 1960, TAROM was flying to a dozen cities across Europe. 1966 saw the operation of its first transatlantic flight, on 14 May 1974, it launched a regular service to New York City. Being part of the group of airlines within Eastern Bloc states meant that for much of its history TAROM has operated Soviet-designed aircraft. As was the case with a number of nations, the Il-62 was the first long-range jet airliner to be put into operation by Romania. Five examples were owned by TAROM, which leased the aircraft to other operators. Plans were made to acquire Vickers VC10 aircraft as well, but in the end the Soviets did not allow it, with 59 aircraft in operation, in the late 70s, TAROM had the largest fleet in the Eastern Bloc, after Aeroflot. In 1978, a contract was signed with the UK enabling Rombac to manufacture the BAC One Eleven at Romaero, meanwhile, the 707 and Il-62 long-range aircraft were operating New York, Abu-Dhabi-Bangkok-Singapore, and Karachi-Beijing. TAROM was the only Eastern Bloc airline to operate flights to Tel Aviv, after the collapse of the communist regime in 1989, the airline, operating a fleet of 65 aircraft of six basic types, was able to acquire more Western-built jets. By 1993, TAROM had introduced long-haul flights to Montreal and Bangkok using Ilyushin Il-62, during the 1990s, TAROM replaced its long-haul fleet of Boeing 707s and IL-62s with Airbus A310s. TAROM terminated loss-making domestic services to Craiova, Tulcea, Caransebeș, and Constanța, and focused its activity on service to key destinations in Europe,2004 was the first profitable year of the last decade
7.
Curtain wall (architecture)
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A curtain wall system is an outer covering of a building in which the outer walls are non-structural, but merely keep the weather out and the occupants in. As the curtain wall is non-structural it can be made of a lightweight material, when glass is used as the curtain wall, a great advantage is that natural light can penetrate deeper within the building. The curtain wall façade does not carry any dead load weight from the other than its own dead load weight. The wall transfers horizontal wind loads that are incident upon it to the building structure through connections at floors or columns of the building. A curtain wall is designed to resist air and water infiltration, sway induced by wind and seismic forces acting on the building, curtain-wall systems are typically designed with extruded aluminum members, although the first curtain walls were made of steel. The aluminium frame is infilled with glass, which provides an architecturally pleasing building. However, parameters related to solar gain control such as thermal comfort, other common infills include, stone veneer, metal panels, louvres, and operable windows or vents. Buildings were constructed with the walls of the building supporting the load of the entire structure. The exterior walls could be non-load-bearing and thus much lighter and more open than the masonry load-bearing walls of the past and this gave way to increased use of glass as an exterior façade, and the modern-day curtain wall was born. Oriel Chambers and 16 Cook Street, both built in Liverpool, England, by architect and civil engineer Peter Ellis, are characterised by their extensive use of glass in their facades. Towards the courtyards they even boasted metal-framed glass curtain walls, which makes two of the worlds first buildings to include this structural feature. The extensive glass walls allowed light to penetrate further into the building, utilizing more floor space, oriel Chambers comprises 43,000 sq ft set over five floors without an elevator which had only recently been invented and was not yet widespread. An early example of a curtain wall used in the classical style is the Kaufhaus Tietz department store on Leipziger Straße, Berlin. Some of the first curtain walls were made with steel mullions, eventually silicone sealants or glazing tape were substituted, using a glass mullion system. Some designs included a cap to hold the glass in place. The first curtain wall installed in New York City, in the Lever House building, was this type of construction, earlier modernist examples are the Bauhaus in Dessau and the Hallidie Building in San Francisco. During the 1970s began the use of aluminium extrusions for mullions. Aluminum offers the advantage of being able to be easily extruded into nearly any shape required for design
8%
8.7%
Moscow
Bucharest
Istanbul
Frankfurt
Vienna
London
Warsaw
Media related to Chișinău International Airport at Wikimedia Commons
