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After Fermi achieved the world's first sustained and controlled nuclear chain reaction with the creation of the first atomic pile, massive reactors were secretly constructed at what is now known as the Hanford Site to transform uranium-238 into plutonium for a bomb.
Manhattan District The Trinity test of the Manhattan Project on 16 July 1945 was the first detonation of a nuclear weapon. Active 1942–1946 Disbanded 15 August 1947 Country United States United Kingdom Canada Branch U.S. Army Corps of Engineers Garrison/HQ Oak Ridge, Tennessee, U.S. Anniversaries 13 August 1942 Engagements Allied invasion of Italy Allied invasion of France Allied invasion of ...
1958 – The U.S. Air Force drafts Project A119, a classified plan to detonate a nuclear bomb on the Moon. The plan is quickly cancelled in favor of a Moon landing. 1958 – RAFAEL is formed by the Israeli Ministry of Defense to coordinate its nuclear program. [6] 1958 – The Campaign for Nuclear Disarmament is formed in the United Kingdom. [36]
As such, it was one of the "cleanest" nuclear bombs ever created, as most of the radioactive intensity of nuclear fallout is caused by the creation of fission products. [40] There was a strong incentive for this modification, since most of the fallout from a test of the bomb would probably have descended on populated Soviet territory.
A nuclear weapon [a] is an explosive device that derives its destructive force from nuclear reactions, either fission (fission or atomic bomb) or a combination of fission and fusion reactions (thermonuclear bomb), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter.
Fat Man was the second nuclear weapon to be deployed in combat after the US dropped a 5-ton atomic bomb, called "Little Boy," on the Japanese city of Hiroshima.
The Cold War ended in 1991, but the looming threat of nuclear attack lives on with more than 14,900 nuclear weapons wielded by nine nations.. A terrorist-caused nuclear detonation is one of 15 ...
Australian physicist Mark Oliphant was a key figure in the launching of both the British and United States nuclear weapons programmes. The 1938 discovery of nuclear fission in uranium by Otto Robert Frisch, Fritz Strassmann, Lise Meitner and Otto Hahn, [1] raised the possibility that an extremely powerful atomic bomb could be created. [2]