Science: Rs from the Sky

How dangerous is radioactive fallout? At last week's Atlantic City meeting of the American Medical Association. Commander Robert A. Conrad of the Naval Medical Research Institute reported on the Marshall Islanders who were exposed to moderate fallout from the great test explosion in the Pacific on March 1. 1954. Talking to physicians, he did not prettify. The most intensive study was made of 64 Marshallese whose island got the heaviest fallout. Hours after the detonation. a snowlike material fell from the sky. It whitened their hair and clung to their skins. At...

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