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J. Robert Oppenheimer (born Julius Robert Oppenheimer; / ˈ ɒ p ən h aɪ m ər / OP-ən-hy-mər; April 22, 1904 – February 18, 1967) was an American theoretical physicist who served as the director of the Manhattan Project's Los Alamos Laboratory during World War II.
Werner Karl Heisenberg (/ ˈ h aɪ z ən b ɜːr ɡ /; [2] German: [ˈvɛʁnɐ ˈhaɪzn̩bɛʁk] ⓘ; 5 December 1901 – 1 February 1976) [3] was a German theoretical physicist, one of the main pioneers of the theory of quantum mechanics and a principal scientist in the Nazi nuclear weapons program during World War II.
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 ...
March 2: John R. Dunning's team at Columbia University verifies Niels Bohr's hypothesis that uranium 235 is responsible for fission by slow neutrons. [10]March: University of Birmingham-based scientists Otto Frisch and Rudolf Peierls author the Frisch–Peierls memorandum, calculate that an atomic bomb might need as little as 1 pound (0.45 kg) of enriched uranium to work.
He was the head of the British team that worked on the Manhattan Project during World War II. He was knighted in Britain in 1945 for his achievements in physics. Chadwick graduated from the Victoria University of Manchester in 1911, where he studied under Ernest Rutherford (known as the "father of nuclear physics"). [2]
Bruno Rossi – co-director of the Detector Group, Cornell physics faculty 1942-1946; Harvey L. Slatin – physicist and inventor who worked on the isolation of plutonium with the Special Engineering Detachment; LaRoy Thompson – Cornell class of 1942, physically assembled the first bomb and flew the practice bombing run at Bikini Island.
Lawrence Marvin Langer (22 December 1913 – 17 January 2000) was a nuclear physicist and a group leader of the Manhattan Project which developed the atomic bombs that were dropped on Hiroshima and Nagasaki. [1]
Theodore Alvin Hall (October 20, 1925 – November 1, 1999) was an American physicist and an atomic spy for the Soviet Union, who, during his work on United States efforts to develop the first and second atomic bombs during World War II (the Manhattan Project), gave a detailed description of the "Fat Man" plutonium bomb, and of several processes for purifying plutonium, to Soviet intelligence.