PHYSICS TODAY COLLECTION / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY PHYSICS TODAY COLLECTION / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Oppenheimer atomic bomb lecture. Robert Oppenheimer (1904-1967, far right), US physicist, became director of the Manhattan Project in 1943. This US military project developed the atom bomb. Oppenheimer is pointing to a picture of an atomic explosion. The first atomic explosion occurred in July 1945. At far left is Kenneth David Nichols (1907-2000) and an unidentified man. Major General Nichols was assigned to the Manhattan Project in 1942, as part of the Army Corps of Engineers. He became a leading atomic weapons and energy expert.
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