On April 24, 1939, the Hamburg physical chemist Paul Harteck, one of the future detainees at Farm Hall, and his assistant Wilhelm Groth, wrote a letter to Erich Schumann, who was the head of the weapons research office in Berlin of German Army Ordnance (Heereswaffenamt) of the War Office. The letter outlined possible applications of nuclear fission, which had been discovered a few months earlier, to weapons. (Schumann, who was both an army general and a professor of physics, was a descendant of the composer. He was not a nuclear physicist and was not taken seriously by the nuclear physicists who were shortly to become involved with the program.)
KeywordsAlpha Particle Nuclear Weapon Heavy Water Atomic Bomb Isotope Separation
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