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The nuclear weapons tests of the United States were performed from 1945 to 1992 as part of the nuclear arms race. The United States conducted around 1,054 nuclear tests by official count, including 216 atmospheric, underwater, and space tests. [ 1 ][ notes 1 ] Most of the tests took place at the Nevada Test Site (NNSS/NTS) and the Pacific ...
During the 1958 moratorium on nuclear testing, a number of sub-critical tests were performed underground to learn more about the dynamics of explosions and the metallurgy of plutonium. The US's first nuclear weapons lab, founded in the Manhattan Project in high secrecy. Tech Area 49 is an open area south of the lab, where zero-yield tests were ...
Raduga (#121, October 20, 1961, at Novaya Zemlya) – one test, with a R-13 rocket launch. Tyulpan (#164, September 8, 1962, at Novaya Zemlya) – one test, with R-14 rockets launched from Chita. Operation K (1961 and 1962, at Sary-Shagan) – five tests, at high altitude, with rockets launched from Kapustin Yar.
Pahute Mesa is one of four major nuclear test regions within the Nevada National Security Site (NNSS). It occupies 243 square miles (630 km 2) in the northwest corner of the NNSS. The eastern section is known as Area 19 and the western section as Area 20. A total of 85 nuclear tests were conducted in Pahute Mesa between 1965 and 1992.
Nuclear weapons tests are experiments carried out to determine the performance, yield, and effects of nuclear weapons. Such tests have resulted until 2020 in up to 2.4 million people dying from its global fallout. Testing nuclear weapons offers practical information about how the weapons function, how detonations are affected by different ...
December 20, 1968. Trinity was the code name of the first detonation of a nuclear weapon, conducted by the United States Army at 5:29 a.m. MWT [ a ] (11:29:21 GMT) on July 16, 1945, as part of the Manhattan Project. The test was of an implosion-design plutonium bomb, nicknamed the "gadget", of the same design as the Fat Man bomb later detonated ...
France became a nuclear power in 1960, and French nuclear stockpiles peaked at just over 500 nuclear weapons in 1992. [1] China developed its first nuclear weapon in 1964; its nuclear stockpile increased until the early 1980s, when it stabilized at between 200 and 260. [1] India became a nuclear power in 1974, while Pakistan developed its first ...
Test information. Nuclear tests. 105. The Pacific Proving Grounds was the name given by the United States government to a number of sites in the Marshall Islands and a few other sites in the Pacific Ocean at which it conducted nuclear testing between 1946 and 1962. The U.S. tested a nuclear weapon (codenamed Able) on Bikini Atoll on June 30, 1946.