Word: nagasaki
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...much better than the Japanese ones. Because of quake-proof construction, many Japanese buildings in Hiroshima and Nagasaki were even stronger than most modern U.S. buildings. U.S. houses have a slight edge over Japan's "paper houses." Houses 7,500 feet away from the burst might survive (compared with a safety limit of 8,500 feet at Nagasaki...
...crude bombs dropped on Hiroshima and Nagasaki were rush jobs intended to be carried in a B29. There was little reason to keep their weight down, since the B-29s of the time could carry 20,000 lbs. from Saipan to the target. Long after Nagasaki, the weight of the first bombs leaked out. It was about...
After 52 months of studying atom-bomb damage to buildings in Hiroshima and Nagasaki, the Atomic Energy Commission and the Department of Defense summed up their findings for the benefit of U.S. builders. They had little encouraging advice to offer. The report did not deal with the damage by radiation (heat, gamma rays, etc.), considered only the blast, which affects a much larger area than the radiation. But the blast effects it described were awesome enough...
Shock Wave. When an atom bomb explodes above the ground (as it did at Nagasaki and Hiroshima), the air around it is heated tremendously. Its push to expand creates a shock wave that roars outward in all directions with enormous speed. At 1,000 ft. from "zero," the point directly beneath the bomb, the wind whooshes out at 800 m.p.h., faster than the speed of sound. Two miles away, it is still blowing at 70 m.p.h...
...signal a go-ahead to the scientists. If they were successful-as they believed they might be-the H-bomb would draw on the sun's method of transforming hydrogen into helium (TIME, Jan. 16) to produce an explosion dwarfing the atomic bomb blasts loosed at Hiroshima, Nagasaki, Bikini, Eniwetok. One such H-bomb might spread destruction over a radius of ten miles...