 (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. |
 (PD) Photo: U.S. Government 23 kt, Baker test,underwater fission bomb, Bikini Atoll, July 24,1946 |
 (PD) Photo: U.S. Government 10.4 Mt, Mike fusion surface test. Enewetak Atoll, October 31, 1952 |
 (PD) Photo: U.S. Department of Energy 10.4 Mt,Mushroom cloud from Mike fusion surface test. Enewetak Atoll, October 31, 1952 |
 (PD) Photo: U.S. Government 15 Mt, Fireball of Castle Bravo fusion bomb surface test, Bikini Atoll, March 1, 1954 |
 (PD) Photo: U.S. Government 1Mt, Arkansas test, parachuted air drop from B52 aircraft, Christmas Island, May 2, 1962 |
