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Leslie Richard Groves Jr. (17 August 1896 – 13 July 1970) was a United States Army Corps of Engineers officer who oversaw the construction of the Pentagon and directed the Manhattan Project, a top secret research project that developed the atomic bomb 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 ...
The NDRC's most important project eventually became the Manhattan Project—the full-scale project to produce nuclear weapons by the United States. An Advisory Committee on Uranium had been established to consider the feasibility of an atomic bomb as part of the National Bureau of Standards during 1939 as the result of the Einstein–Szilárd ...
Manhattan Project & Manhattan Engineer District Organization Chart, effective May 5, 1946, showing Brigadier Gen. Kenneth D. Nichols as district engineer of the MED. In summary: Leadership on full ...
The Manhattan Project was a research and development project that produced the first atomic bombs during World War II. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project was under the direction of Major General Leslie Groves of the US Army Corps of Engineers. The Army component of ...
The S-1 Section coordinated research into nuclear weapons in United States, in cooperation with the British Tube Alloys project. The United States Army created the Manhattan District in June 1942, and took over responsibility for the development of nuclear weapons from the S-1 Executive Committee in September 1942. The OSRD's S-1 research and ...
The Atomic Energy Act of 1946 created the Atomic Energy Commission (AEC) to take over the functions and assets of the Manhattan Project. President Harry S. Truman appointed its five commissioners on 28 October 1946, and Groves appointed Nichols as the military liaison officer to the AEC.
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