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Black Brant XII
The Black Brant is a family of Canadian-designed sounding rockets originally built by Bristol Aerospace, since absorbed by Magellan Aerospace in Winnipeg, Manitoba. Over 800 Black Brants of various versions have been launched since they were first produced in 1961, and the type remains one of the most popular sounding rockets. They have been repeatedly used by the Canadian Space Agency and NASA. History Black Brant was the result of research at Canadian Armament Research and Development Establishment (CARDE) during the 1950s into the nature of the upper part of the atmosphere as part of ongoing research into anti-ballistic missile systems and very-long-range communication. In 1957 CARDE contracted Bristol to produce a simple rocket fuselage, called the Propulsion Test Vehicle, for studies into high-power solid fuels. The resulting design, by Albert Fia, was quite heavy, as it was designed to be able to accommodate a wide variety of engine burning times, propellant loadings an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Brant
The brant or brent goose (''Branta bernicla'') is a small goose of the genus '' Branta''. There are three subspecies, all of which winter along temperate-zone sea-coasts and breed on the high-Arctic tundra. The Brent oilfield was named after the species. Description The brant is a small goose with a short, stubby bill. It measures long, across the wings and weighs . The under-tail is pure white, and the tail black and very short (the shortest of any goose). The species is divided into three subspecies: * Dark-bellied brant goose ''B. b. bernicla'' (Linnaeus, 1758) * Pale-bellied brant goose ''B. b. hrota'' ( Müller, 1776) (also known as light-bellied brent goose in Europe, and Atlantic brant in North America) * Black brant goose ''B. b. nigricans'' (Lawrence, 1846) (sometimes also known as the Pacific brant in North America) Some DNA evidence suggests that these forms are genetically distinct; while a split into three separate species has been proposed, it is not wid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ionosphere
The ionosphere () is the ionized part of the upper atmosphere of Earth, from about to above sea level, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation. It plays an important role in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical importance because, among other functions, it influences radio propagation to distant places on Earth. History of discovery As early as 1839, the German mathematician and physicist Carl Friedrich Gauss postulated that an electrically conducting region of the atmosphere could account for observed variations of Earth's magnetic field. Sixty years later, Guglielmo Marconi received the first trans-Atlantic radio signal on December 12, 1901, in St. John's, Newfoundland (now in Canada) using a kite-supported antenna for reception. The transmitting station in Poldhu, Cornwall, used a spark-gap transmitter to produce a signal with a freq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boris Yeltsin
Boris Nikolayevich Yeltsin ( rus, Борис Николаевич Ельцин, p=bɐˈrʲis nʲɪkɐˈla(j)ɪvʲɪtɕ ˈjelʲtsɨn, a=Ru-Boris Nikolayevich Yeltsin.ogg; 1 February 1931 – 23 April 2007) was a Soviet and Russian politician who served as the first president of the Russian Federation from 1991 to 1999. He was a member of the Communist Party of the Soviet Union from 1961 to 1990. He later stood as a Political Independent, political independent, during which time he was viewed as being ideologically aligned with liberalism and Russian nationalism. Yeltsin was born in Butka, Russia, Butka, Ural Oblast. He grew up in Kazan and Berezniki. After studying at the Ural State Technical University, he worked in construction. After joining the Communist Party, he rose through its ranks, and in 1976 he became First Secretary of the party's Sverdlovsk Oblast committee. Yeltsin was initially a supporter of the ''perestroika'' reforms of Soviet leader Mikhail Gorbachev. He lat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheget
''Cheget'' (russian: Чегет) is a "nuclear briefcase" (named after in Kabardino-Balkaria) and a part of the automatic system for the command and control of Russia's Strategic Nuclear Forces (SNF) named ''Kazbek'' (, named after Mount Kazbek on the Georgia–Russia border). From when it was first developed, a "nuclear suitcase" has been available to the Russian head of state, Minister of Defense and the head of the General Staff. History The ''cheget'' was developed during Yuri Andropov's administration in the early 1980s. The suitcase was put into service just as Mikhail Gorbachev took office as General Secretary of the Central Committee of the Communist Party of the Soviet Union in March 1985. It is connected to the special communications system code-named ''Kavkaz'' (, named after the local name for the Caucasus region), which "supports communication between senior government officials while they are making the decision whether to use nuclear weapons, and in its own turn i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trident (missile)
The Trident missile is a submarine-launched ballistic missile (SLBM) equipped with multiple independently targetable reentry vehicles (MIRV). Originally developed by Lockheed Missiles and Space Corporation, the missile is armed with thermonuclear warheads and is launched from nuclear-powered ballistic missile submarines (SSBNs). Trident missiles are carried by fourteen United States Navy s, with American warheads, as well as four Royal Navy s, with British warheads. The missile is named after the mythological trident of Neptune. Development In 1971, the US Navy began studies of an advanced Undersea Long-range Missile System (ULMS). A Decision Coordinating Paper (DCP) for the ULMS was approved on 14 September 1971. ULMS program outlined a long-term modernization plan, which proposed the development of a longer-range missile termed ULMS II, which was to achieve twice the range of the existing Poseidon (ULMS I) missile. In addition to a longer-range missile, a larger submarine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Rocket Incident
The Norwegian rocket incident, also known as the Black Brant scare, occurred on January 25, 1995 when a team of Norwegian and American scientists launched a Black Brant XII four-stage sounding rocket from the Andøya Rocket Range off the northwestern coast of Norway. The rocket carried scientific equipment to study the aurora borealis over Svalbard, and flew on a high northbound trajectory, which included an air corridor that stretches from Minuteman III nuclear missile silos in North Dakota all the way to Moscow, the capital city of Russia. The rocket eventually reached an altitude of , resembling a US Navy submarine-launched Trident missile. Fearing a high-altitude nuclear attack that could blind Russian radar, Russian nuclear forces went on high alert, and the "nuclear briefcase" (the ''Cheget'') was brought to Russian President Boris Yeltsin, who then had to decide whether to launch a retaliatory nuclear strike against the United States. Russian observers determined that ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andøya Rocket Range
Andøya is the northernmost island in the Vesterålen archipelago, situated about inside the Arctic circle. Andøya is located in Andøy Municipality in Nordland county, Norway. The main population centres on the island include the villages of Andenes, Bleik, and Risøyhamn. The island has an area of , making it the tenth largest island in Norway. The island is connected to the neighboring island of Hinnøya via the Andøy Bridge. The Andfjorden lies to the east of the island, the Risøysundet strait lies to the south and east side of the island, and the Gavlfjorden lies to the southwest side. The Norwegian Sea lies to the west and north. The numerous bog areas on Andøya are used for the extensive production of peat. Andøya is also well known for its cloudberries. Besides the flat and largely continuous bog areas, Andøya also consists of steep mountain ranges reaching up to high. The sharp peak of Kvasstinden is the highest point on the island at . Andøya Space, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manitoba Museum
The Manitoba Museum, previously the Manitoba Museum of Man and Nature, is a human and natural history museum in Winnipeg, Manitoba, as well as the province's largest, not-for-profit centre for heritage and science education. Located close to City Hall, the museum was designed in 1965 by Herbert Henry Gatenby Moody of Moody and Moore. Including its Planetarium and Science Gallery exhibit, the museum focuses on collecting, researching, and sharing Manitoba's human and natural heritage, culture, and environment. The Hudson's Bay Company donated its historic three-centuries-old collection (and supporting funds) to the museum in 1994, becoming the largest corporate donation ever received by the museum. The Institute for Stained Glass in Canada has documented the stained glass at the museum. History Background In 1879, the Historical and Scientific Society of Manitoba officially began to collect and preserve its heritage at some unknown location. In the early 1890s, E. Thompson Seton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montréal
Montreal ( ; officially Montréal, ) is the second-most populous city in Canada and most populous city in the Canadian province of Quebec. Founded in 1642 as '' Ville-Marie'', or "City of Mary", it is named after Mount Royal, the triple-peaked hill around which the early city of Ville-Marie is built. The city is centred on the Island of Montreal, which obtained its name from the same origin as the city, and a few much smaller peripheral islands, the largest of which is Île Bizard. The city is east of the national capital Ottawa, and southwest of the provincial capital, Quebec City. As of 2021, the city had a population of 1,762,949, and a metropolitan population of 4,291,732, making it the second-largest city, and second-largest metropolitan area in Canada. French is the city's official language. In 2021, it was spoken at home by 59.1% of the population and 69.2% in the Montreal Census Metropolitan Area. Overall, 85.7% of the population of the city of Montreal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woomera Test Range
The RAAF Woomera Range Complex (WRC) is a major Australian military and civil aerospace facility and operation located in South Australia, approximately north-west of Adelaide. The WRC is operated by the Royal Australian Air Force (RAAF), a division of the Australian Defence Force (ADF). The complex has a land area of or roughly the size of North Korea or Pennsylvania. The airspace above the area is restricted and controlled by the RAAF for safety and security. The WRC is a highly specialised ADF test and evaluation capability operated by the RAAF for the purposes of testing defence materiel. The complex has been variously known as the Anglo-Australian Long Range Weapons Establishment and then the Woomera Rocket Range; the RAAF Woomera Test Range and in 2013, the facility was reorganised and renamed to the RAAF Woomera Range Complex (WRC). The ground area of the WRC is defined by the Woomera Prohibited Area (WPA) and includes the Nurrungar Test Area (NTA); with a land area of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Research Council Canada
The National Research Council Canada (NRC; french: Conseil national de recherches Canada) is the primary national agency of the Government of Canada dedicated to science and technology research & development. It is the largest federal research & development organization in Canada. The Minister of Innovation, Science, and Economic Development (currently, François-Philippe Champagne) is responsible for the NRC. Mandate NRC is an agency of the Government of Canada, and its mandate is set out in the '' National Research Council Act''. Under the Act, the NRC is responsible for: * Undertaking, assisting or promoting scientific and industrial research in fields of importance to Canada; * Providing vital scientific and technological services to the research and industrial communities; * Investigating standards and methods of measurement; * Working on the standardization and certification of scientific and technical apparatus, instruments and materials used or usable by Canadian in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warsaw Pact
The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist republics of Central and Eastern Europe in May 1955, during the Cold War. The term "Warsaw Pact" commonly refers to both the treaty itself and its resultant defensive alliance, the Warsaw Treaty Organization (WTO). The Warsaw Pact was the military complement to the Council for Mutual Economic Assistance (Comecon), the regional economic organization for the socialist states of Central and Eastern Europe. The Warsaw Pact was created in reaction to the integration of West Germany into the North Atlantic Treaty Organization (NATO)"In reaction to West Germany's NATO accession, the Soviet Union and its Eastern European client states formed the Warsaw Pact in 1955." Citation from: in 1955 as per the London and Paris Conferences of 1954.The Warsaw Pact R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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