Albert Einstein - German Physicist
(1879-1955)
Fall 1939
At the prompting of Leo Szilard, Einstein signs a letter to President Roosevelt explaining the danger of atomic bombs and urging that the U.S. take a lead in their production. The letter is delivered to the president by Alexander Sachs on October 11, 1939. Spurred by Einstein's letter, Roosevelt establishes the Advisory Committee on Uranium which meets on Oct. 21 to discuss nuclear fission, power sources and bombs. The military gives $6,000 to the committee for chain reaction experiments.

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