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| chicago rock music, uniforms, miscellaneous tv analysis, publishing, fatten easily, magazine, computer graphics game programming, blonde jokes, computers / computer graphics / game programming, golden age, viruses, biography/autobiography, fatman on the left: four decades in the underground, chicago alternative, gifts for fat men, the, remix, medicine articles, | However it was discovered that plutonium created for the bomb in the nuclear reactors at Hanford, Washington, even though reviews it was super-grade weapon plutonium containing only about 0.9% Pu-240, was not as pure as the initial samples of plutonium developed at the cyclotrons at Ernest O. reviews Lawrence's Radiation Laboratory in Berkeley, California. Because of the presence of the isotope Pu-240, reactor-bred plutonium had a much higher rate of spontaneous neutron emission than was previously thought, and if a gun-type device was used reviews it would most likely pre-detonate and result in a messy and costly "fizzle". The spontaneous fission rate of Pu-240 is 415,000 fissions/(s·kg), and the amount was 0.9% of 6.2 kg, is 56 g. Thus there were 23,000 spontaneous fissions per second. This means that the last few centimeters would have to be travelled in preferably much less than 40 microseconds. |
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| The bomb had a yield of about 21 kilotons of TNT, or 8.78×1013 joules = 88 TJ (terajoules).[1] Because of Nagasaki's hilly terrain, the damage was somewhat less extensive than that in relatively flat Hiroshima. An estimated 40,000 people were killed outright by the bombing at Nagasaki, and about 25,000 were injured.[2] Many thousands more would die later from related injuries, and radiation sickness from nuclear fallout. "Fat Man" was an implosion type weapon remix using plutonium. A subcritical sphere of plutonium was placed in the center of a remix hollow sphere of high explosive. Numerous detonators located on the surface of remix the high explosive were fired simultaneously to produce a powerful inward pressure on the core, squeezing it and increasing its density, resulting in a supercritical condition and a nuclear explosion. At first it was thought that two pieces of sub-critical plutonium (Pu-239) could simply be shot into one another to create a nuclear explosion, and a plutonium gun-type design of this sort (known as the "Thin Man" bomb) was worked on for some time during the Manhattan Project.[3] |
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