(PD) Photo: Berlyn Brixner 20 kt,Trinity surface test of first fission bomb, July 15, 1945, White Sands, New Mexico. 0.016 seconds after detonation, fireball was about 200 metres wide.
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(PD) Photo: U.S. Government 21 kt, Baker test,underwater fission bomb, Bikini Atoll, July 24,1946
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(PD) Photo: U.S. Government 10.4 Mt, Mike fusion surface test. Enewetak Atoll, October 31, 1952
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(PD) Photo: U.S. Government 15 Mt, Fireball of Castle Bravo fusion bomb test, Bikini Atoll, March 1, 1954
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