At the time I was brought into the picture, research on the uses of atomic energy had been going on at a gradually accelerating pace since January, 1… - Leslie Groves

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At the time I was brought into the picture, research on the uses of atomic energy had been going on at a gradually accelerating pace since January, 1939, when Lise Meitner explained that the uranium atom could be split. The discovery opened up two divergent paths for its exploitation. Most physical scientsts realized that nuclear energy, derived from the splitting, or fissioning, of the atom, might be used either to generate power for peaceful purposes or to generate super-weapons. In general, however, it was the scientists who were personally acquainted with Hitler's New Order who first became most interested in the possible military uses of atomic energy and its effect on the existing balance of political power.