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1978 Soviet Nuclear Tests
The Soviet Union's 1978 nuclear test series was a group of 31 nuclear tests conducted in 1978. These tests A bomb test may be a salvo test, defined as two or more explosions "where a period of time between successive individual explosions does not exceed 5 seconds and where the burial points of all explosive devices can be connected by segments of straight lines, each of them connecting two burial points and does not exceed 40 kilometers in length". followed the '' 1977 Soviet nuclear tests'' series and preceded the '' 1979 Soviet nuclear tests'' series. References {{reflist, refs= {{cite book, publisher=RFNC-VNIIEF, year=1996, title=USSR Nuclear Weapons Tests and Peaceful Nuclear Explosions 1949 through 1990, location=Sarov, Russia The official Russian list of Soviet tests. {{cite book, editor-last=Podvig, editor-first=Pavel, year=2001, title=Russian Strategic Nuclear Forces, publisher=MIT Press, location=Cambridge, MA, isbn=9780262661812, url=https://books.g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degelen
Degelen ( kk, Дегелең) is a mountain massif in the Abai Region, Kazakhstan.''Kazakhstan National Encyclopedia'' / Ch. ed. B.O. Jakyp. — Almaty: « Kazakh encyclopedia» ZhSS, 2011. ISBN 9965-893-64-0 (T.Z.), ISBN 9965-893-19-5 Semey city, former Semipalatinsk, lies about to the ENE of the Degelen mountain area. The Balapan nuclear test site lies to the northeast. History At the time of the Kazakh SSR Degelen was part of the Semipalatinsk Test Site complex. Around hundred horizontal tunnels were bored into the mountain to carry out nuclear tests operated by the USSR armed forces. The mountain massif was the location chosen for the majority of the subcritical and supercritical tests. 215 underground nuclear explosions were carried out. In 1991, following the dissolution of the Soviet Union, the site was taken over by the government of Kazakhstan. The tunnels were closed in 1993. The abandoned electrical installations and the rails that had been used to transport the nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Nuclear Weapons
This is a list of nuclear weapons listed according to country of origin, and then by type within the states. United States US nuclear weapons of all types – bombs, warheads, shells, and others – are numbered in the same sequence starting with the Mark 1 and () ending with the W-91 (which was canceled prior to introduction into service). All designs which were formally intended to be weapons at some point received a number designation. Pure test units which were experiments (and not intended to be weapons) are not numbered in this sequence. Early weapons were very large and could only be used as free fall bombs. These were known by "Mark" designators, like the Mark 4 which was a development of the Fat Man weapon. As weapons became more sophisticated they also became much smaller and lighter, allowing them to be used in many roles. At this time the weapons began to receive designations based on their role; bombs were given the prefix "B", while the same warhead used in other r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1978 In The Soviet Union ...
The following lists events that happened during 1978 in the Union of Soviet Socialist Republics. Incumbents * General Secretary of the Communist Party of the Soviet Union: Leonid Brezhnev * Premier of the Soviet Union: Alexei Kosygin * Chairman of the Russian SFSR: Mikhail Solomentsev Events January February March April May June July September October November December See also * 1978 in fine arts of the Soviet Union *List of Soviet films of 1978 {{Year in Asia, 1978 1970s in the Soviet Union Soviet Union Soviet Union Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Nuclear Weapons Testing
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk (Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Government that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fizzle (nuclear Test)
A fizzle occurs when the detonation of a device for creating a nuclear explosion (such as a nuclear weapon) grossly fails to meet its expected yield. The cause(s) for the failure can be linked to improper design, poor construction, or lack of expertise.Staff Writer.NBC Weapons: North Korean Fizzle Bomb" ''Strategy Page.'' Retrieved on 2008-05-04. Earl Lane.Nuclear Experts Assess the Threat of a "Backyard Bomb”" ''American Association for the Advancement of Science.'' Retrieved on 2008-05-04. All countries that have had a nuclear weapons testing program have experienced some fizzles.Meirion Jones.A short history of fizzles" ''BBC News.'' Retrieved on 2008-05-04. A fizzle can spread radioactive material throughout the surrounding area, involve a partial fission reaction of the fissile material, or both.Theodore E. Liolios.The Effects of Nuclear Terrorism: Fizzles" (PDF) ''European Program on Science and International Security.'' Retrieved on 2008-05-04. For practical purposes, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kraton-3
Nuclear Explosions for the National Economy (russian: Ядерные взрывы для народного хозяйства, Yadernyye vzryvy dlya narodnogo khozyaystva; sometimes referred to as ''Program #7'') was a Soviet program to investigate peaceful nuclear explosions (''PNEs''). It was analogous to the United States program ''Operation Plowshare''. One of the better-known tests was '' Chagan'' of January 15, 1965. Radioactivity from the Chagan test was detected over Japan by both the U.S. and Japan in apparent violation of the 1963 Partial Test Ban Treaty (PTBT). The United States complained to the Soviets, but the matter was dropped. History In November 1949, shortly after the test of their first nuclear device on September 23, 1949, Andrey Vyshinsky, the Soviet representative to the United Nations, delivered a statement justifying their efforts to develop their own nuclear weapons capability. He said: However the USSR did not immediately follow the U.S. lead in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Fallout
Nuclear fallout is the residual radioactive material propelled into the upper atmosphere following a nuclear blast, so called because it "falls out" of the sky after the explosion and the shock wave has passed. It commonly refers to the radioactive dust and ash created when a nuclear weapon explodes. The amount and spread of fallout is a product of the size of the weapon and the altitude at which it is detonated. Fallout may get entrained with the products of a pyrocumulus cloud and fall as black rain (rain darkened by soot and other particulates, which fell within 30–40 minutes of the atomic bombings of Hiroshima and Nagasaki). This radioactive dust, usually consisting of fission products mixed with bystanding atoms that are neutron-activated by exposure, is a form of radioactive contamination. Types of fallout Fallout comes in two varieties. The first is a small amount of carcinogenic material with a long half-life. The second, depending on the height of detonation, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TNT Equivalent
TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. The is a unit of energy defined by that convention to be , which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT. In other words, for each gram of TNT exploded, (or 4184 joules) of energy is released. This convention intends to compare the destructiveness of an event with that of conventional explosive materials, of which TNT is a typical example, although other conventional explosives such as dynamite contain more energy. Kiloton and megaton The "kiloton (of TNT)" is a unit of energy equal to 4.184 terajoules (). The "megaton (of TNT)" is a unit of energy equal to 4.184 petajoules (). The kiloton and megaton of TNT have traditionally been used to describe the energy output, and hence the destructive power, of a nuclear weapon. The TNT equivalent appears in various nuclear weapon control treaties, and has b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Weapon Yield
The explosive yield of a nuclear weapon is the amount of energy released when that particular nuclear weapon is detonated, usually expressed as a TNT equivalent (the standardized equivalent mass of trinitrotoluene which, if detonated, would produce the same energy discharge), either in kilotonnes (kt—thousands of tonnes of TNT), in megatonnes (Mt—millions of tonnes of TNT), or sometimes in terajoules (TJ). An explosive yield of one terajoule is equal to . Because the accuracy of any measurement of the energy released by TNT has always been problematic, the conventional definition is that one kilotonne of TNT is held simply to be equivalent to 1012 calories. The yield-to-weight ratio is the amount of weapon yield compared to the mass of the weapon. The practical maximum yield-to-weight ratio for fusion weapons (thermonuclear weapons) has been estimated to six megatonnes of TNT per tonne of bomb mass (25 TJ/kg). Yields of 5.2 megatonnes/tonne and higher have been reported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partial Nuclear Test Ban Treaty
The Partial Test Ban Treaty (PTBT) is the abbreviated name of the 1963 Treaty Banning Nuclear Weapon Tests in the Atmosphere, in Outer Space and Under Water, which prohibited all test detonations of nuclear weapons except for those conducted underground. It is also abbreviated as the Limited Test Ban Treaty (LTBT) and Nuclear Test Ban Treaty (NTBT), though the latter may also refer to the Comprehensive Nuclear-Test-Ban Treaty (CTBT), which succeeded the PTBT for ratifying parties. Negotiations initially focused on a comprehensive ban, but that was abandoned because of technical questions surrounding the detection of underground tests and Soviet concerns over the intrusiveness of proposed verification methods. The impetus for the test ban was provided by rising public anxiety over the magnitude of nuclear tests, particularly tests of new thermonuclear weapons (hydrogen bombs), and the resulting nuclear fallout. A test ban was also seen as a means of slowing nuclear proliferati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1977 Soviet Nuclear Tests
The Soviet Union's 1977 nuclear test series was a group of 24 nuclear tests conducted in 1977. These tests A bomb test may be a salvo test, defined as two or more explosions "where a period of time between successive individual explosions does not exceed 5 seconds and where the burial points of all explosive devices can be connected by segments of straight lines, each of them connecting two burial points and does not exceed 40 kilometers in length". followed the '' 1976 Soviet nuclear tests'' series and preceded the ''1978 Soviet nuclear tests'' series. References {{reflist, refs= {{cite book, publisher=RFNC-VNIIEF, year=1996, title=USSR Nuclear Weapons Tests and Peaceful Nuclear Explosions 1949 through 1990, location=Sarov, Russia The official Russian list of Soviet tests. {{cite book, editor-last=Podvig, editor-first=Pavel, year=2001, title=Russian Strategic Nuclear Forces, publisher=MIT Press, location=Cambridge, MA, isbn=9780262661812, url=https://books.goog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevation
The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vertical datum). The term ''elevation'' is mainly used when referring to points on the Earth's surface, while ''altitude'' or ''geopotential height'' is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and '' depth'' is used for points below the surface. Elevation is not to be confused with the distance from the center of the Earth. Due to the equatorial bulge, the summits of Mount Everest and Chimborazo have, respectively, the largest elevation and the largest geocentric distance. Aviation In aviation the term elevation or aerodrome elevation is defined by the ICAO as the highest point of the landing area. It is often measured in feet and can be found in approach charts of the aerodrome. It is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
