Word: naturale
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Dates: during 1940-1949
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"Failures in art," he said, "take refuge in abstract art, in morbid art, in perverted art-in short, in infamous art. These failures are like a leper who . . . insists on exhibiting his awful ulcers . . . [They] stimulate themselves with cocaine, morphine, marijuana, alcohol and snobbism . . . There is no room for abstract...
What did the Russians need to do? The Smyth Report told them (as their own scientists could have told them anyway) that there are two roads to the release of explosive atomic energy. One is separating explosive uranium 235 from natural uranium. The other is transmuting uranium into explosive plutonium...
Natural uranium contains two principal "isotopes" (U-235 and nonexplosive U-238) which differ only in atomic weight. Since the isotopes are identical chemically, they cannot be separated by chemical means. They must be separated by some process taking advantage of their slightly different atomic weights. The job is extremely...
Plutonium is trickier. It is made in a pile consisting of natural uranium (mostly U-238) rods imbedded in super-pure graphite. When everything is just right, a chain reaction starts. Plutonium can be separated from _ uranium by comparatively simple chemical refining. But the piles themselves are not simple. If...
President Conant at the welcoming luncheon discussed the teaching of science and said that the present College curriculum requires a course on the history of science to orient students not concentrating in the area of the natural sciences.