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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 ...
Fat Man Replica of the original Fat Man bomb Type Nuclear fission gravity bomb Place of origin United States Production history Designer Los Alamos Laboratory Produced 1945–1949 No. built 120 Specifications Mass 10,300 pounds (4,670 kg) Length 128 inches (3.3 m) Diameter 60 inches (1.5 m) Filling Plutonium Filling weight 6.2 kg Blast yield 21 kt (88 TJ) "Fat Man" (also known as Mark III) was ...
"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 ...
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 ...
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
Oliphant was an advocate of nuclear weapons research. He served on the post-war Technical Committee that advised the British government on nuclear weapons, [74] and publicly declared that Britain needed to develop its own nuclear weapons independent of the United States to "avoid the danger of becoming a lesser power". [75]
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 ...