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Implosion Mark 2 – Another Manhattan Project plutonium implosion weapon, a hollow pit implosion design, was also sometimes referred to as Mark 2. Also cancelled 1944. Also cancelled 1944. Mark 3 – " Fat Man " plutonium implosion weapon (used against Nagasaki), effectively the same as the "Gadget" device used in the Trinity nuclear test with ...
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 ...
Gerber Mark II (1967), an American double-edged combat knife; Ruger MK II (1982–2005), an American semi-automatic pistol; Savage Mark II, a bolt action rimfire rifle. Ruger M77 Mark II, an American bolt-action rifle; Thin Man nuclear bomb or Mark 2 nuclear bomb (1945), a gun-type plutonium bomb; Mark II, a variant of the British Mark I tank
Non-PTBT tests [Summ 2] Yield range [Summ 3] Total yield (kilotons) [Summ 4] Notes Trinity: 1945 1: 1: 1: 21 21: First nuclear weapons test, conducted as part of the Manhattan Project. Tested the Mark 3 Fat Man design. Crossroads: 1946 2: 2: 2: 21 42: First postwar test series. Sandstone: 1948 3: 3: 3: 18 to 49 104: The first use of "levitated ...
"Thin Man" was the code name for a proposed plutonium-fueled gun-type nuclear bomb that the United States was developing during the Manhattan Project. Its development was abandoned in 1944 after it was discovered that the spontaneous fission rate of nuclear reactor -bred plutonium was too high for use in a gun-type design due to the high ...
Little Boy was a type of atomic bomb created by the United States as part of the Manhattan Project during World War II.The name is also often used to describe the specific bomb (L-11) used in the bombing of the Japanese city of Hiroshima by the Boeing B-29 Superfortress Enola Gay on 6 August 1945, making it the first nuclear weapon used in warfare, and the second nuclear explosion in history ...
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]
The Tube Alloys programme in Britain and Canada was the first nuclear weapons project. Due to the high costs for Britain while fighting a war within bombing range of its enemies, Tube Alloys was ultimately subsumed into the Manhattan Project by the Quebec Agreement with the United States. Under the agreement, the two nations would share nuclear ...