oppenheimer
Category: Histoire
mise à jour avec succès: il y a 19 jrs
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Created byGeeth Kuna
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Les événements
First contact with the government is made by G.B. Pegram of Columbia University, who arranges a conference between Enrico Fermi and the Navy Department.Albert Einstein is persuaded by fellow scientists to use his influence and present the military potential of an uncontrolled fission chain reaction to President Franklin D. Roosevelt.World War II begins with the invasion of Poland by Nazi Germany.Advisory Committee on Uranium, appointed by President Roosevelt, reports that a chain reaction in uranium is possible, though unproved.A fund of $6,000 is made available to the Advisory Committee on Uranium to begin research on nuclear fission.Japan attacks Pearl Harbor.The United States declares war on Japan.Nazi Germany declares war on the United States.Office in New York City is opened and officially given the name Manhattan Engineer District—hence “Manhattan Project.”Brig. Gen. Leslie R. Groves is placed in charge of all Army activities relating to the project.Fermi finally succeeds in producing the world's first controlled nuclear chain reaction at the University of Chicago.Laboratory directed by J. Robert Oppenheimer is created in Los Alamos, New Mexico.Nuclear fission was discovered in 1938 by Otto Hahn, Lise Meitner, and Fritz Strassmann.Nazi Germany surrenders.First atomic bomb is tested in the Trinity Test at Alamogordo Bombing Range in New Mexico.Little Boy, a uranium-based bomb, is dropped on Hiroshima, JapanFat Man, a plutonium-based bomb, is dropped on Nagasaki, JapanJapan announces surrender.
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