Word: detectably
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Dates: during 1940-1949
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...some immediate applications. Blond, bushy-browed Walter H. Zinn, the discoverer, who looks like a happy Mephistopheles, thinks that neutrons can probably be used like X rays to examine the structure of molecules. Neutrons are light enough to be scattered by hydrogen atoms, which X rays do not detect; hence they can be used to study organic molecules, such as viruses, which mark the difference between living and inanimate matter...
...work with infinite caution, watching instruments which measure the number of free neutrons within the experimental mass. Under some conditions, the chain reaction starts slowly. But sometimes it leaps into violence in a millionth of a second. There is no explosion, no vibration, no sound. No human sense can detect the outburst of deadly radiation. The only warning, which comes too late, is a faint bluish glow. Some experts think it is caused by ionization of the air; others believe it to be an optical illusion telegraphed to the brain by stimulated nerves behind the eyes...
Operating under a contract with the officer of Scientific Research and Development the local laboratory marshalled a staff of 460 persons. including 125 college-trained scientists recruited from all over the united States to play a part in devising instruments for the Navy to detect and sink enemy submarines...
...Work for Congress. Repeatedly, industry did the wildly improbable. For example, G.E. built instruments to detect leaks and tell how fast, and in what quantity, gas was going through the pipes, by merely attaching an instrument to the outside. Time & again, companies were asked to design a machine according to a "mathematical formula which they did not fully understand." Out of this amazing gadgetry have already come scores of new products, or processes, which have nothing to do with atomic power, such as new ways to dehydrate foodstuffs...
...estimated arrival time at Leyte was sent out by radio from Guam. But was it ever received at Leyte, and if so, by whom? Were Leyte port authorities negligent in not reporting her overdue? Were there defects in the air searches (flown from three nearby bases) which failed to detect the cruiser's giant oil slick for three days after she sank...