Manhattan Project
Leslie Richard Groves appoints Robert Oppenheimer to coordinate the scientific research of the project at the "Site Y" laboratory
Manhattan Project
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1942
Manhattan Project
Leslie Richard Groves appoints Robert Oppenheimer to coordinate the scientific research of the project at the "Site Y" laboratory
Manhattan Project
Groves and Oppenheimer visit Los Alamos, New Mexico and designate it as the location for "Site Y
Manhattan Project
Groves and Oppenheimer visit Los Alamos, New Mexico and designate it as the location for "Site Y
Manhattan Project
Arthur Compton organizes the University of Chicago Metallurgical Laboratory in early 1942 to study plutonium and fission piles (primitive nuclear reactors)
Manhattan Project
Theorists Hans Bethe, John Van Vleck, Edward Teller, Felix Bloch, Emil Konopinski, Robert Serber, Stanley S. Frankel, and Eldred C. Nelson (the latter three all former students of Oppenheimer) quickly confirm that a fission bomb is feasible
Manhattan Project
Theorists Hans Bethe, John Van Vleck, Edward Teller, Felix Bloch, Emil Konopinski, Robert Serber, Stanley S. Frankel, and Eldred C. Nelson (the latter three all former students of Oppenheimer) quickly confirm that a fission bomb is feasible
Manhattan Project
Groves appoints Oppenheimer to head the project's secret weapons laboratory. Theorists Hans Bethe, John Van Vleck, Edward Teller, Felix Bloch, Emil Konopinski, Robert Serber, Stanley S. Frankel, and Eldred C.
Manhattan Project
Nelson (the latter three all former students of Oppenheimer) quickly confirm that a fission bomb is feasible.
Manhattan Project
Oppenheimer and Robert Serber of the University of Illinois work on the problems of neutron diffusion (how neutrons moved in the chain reaction) and hydrodynamics (how the explosion produced by the chain reaction might behave). Arthur Compton asks theoretical physicist J.
Manhattan Project
Robert Oppenheimer convenes a summer conference at the University of California, Berkeley to discuss the design of a fission bomb, Edward Teller brings up the possibility of a hydrogen bomb as a major point of discussion.
Manhattan Project
Robert Oppenheimer of the University of California, Berkeley to take over research on fast neutron calculations-key to calculations about critical mass and weapon detonation
Manhattan Project
Oppenheimer and Robert Serber of the University of Illinois work on the problems of neutron diffusion (how neutrons moved in the chain reaction) and hydrodynamics (how the explosion produced by the chain reaction might behave).
Manhattan Project
Theorists Hans Bethe, John Van Vleck, Edward Teller, Felix Bloch, Emil Konopinski, Robert Serber, Stanley S. Frankel, and Eldred C. Nelson (the latter three all former students of Oppenheimer) quickly confirm that a fission bomb is feasible.
Manhattan Project
Groves appoints Oppenheimer to head the project's secret weapons laboratory. From 1942-1946 under the control of the US Army Corps of Engineers, under the administration of General Leslie R. Groves
Manhattan Project
The scientific research is directed by American physicist J. Robert Oppenheimer
1944
Manhattan Project
Successful test of explosive lens for Fat Man
1945
Manhattan Project
Second meeting of the Target Committee, at Los Alamos, which works to finalize the list of cities on which atomic bombs may be dropped
Manhattan Project
General Carl Spaatz is ordered to bomb one of the targets: Hiroshima, Kokura, Niigata, or Nagasaki as soon as weather permitted, some time after August 3
Manhattan Project
The joint work of the scientists at Los Alamos resulted in the first artificial nuclear explosion near Alamogordo on July 16, 1945, the site of which Oppenheimer named "Trinity". The first nuclear explosion, the "Trinity" test of an implosion-style plutonium-based nuclear weapon known as "the gadget", near Alamogordo, New Mexico
Manhattan Project
General Carl Spaatz is ordered to bomb one of the targets: Hiroshima, Kokura, Niigata, or Nagasaki as soon as weather permitted, some time after August 3
Manhattan Project
"Fat Man", an implosion-type plutonium-239 weapon, is used against the city of Nagasaki, Japan
Manhattan Project
The Smyth Report was the common name given to an administrative history written by physicist Henry DeWolf Smyth about the Allied World War II effort to develop the atomic bomb, the Manhattan Project
Manhattan Project
Oppenheimer resigns as director of Los Alamos, and is succeeded by Norris Bradbury
Manhattan Project
Oppenheimer resigns as director of Los Alamos, and is succeeded by Norris Bradbury
Provenance and editorial notes
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