Word: zinjanthropus
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Dates: during 1962-1962
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Oldest Man. Atomic physics, says Brothwell in the current issue of Discovery magazine, can take a large share of the credit. When a manlike creature, Zinjanthropus, was discovered in East Africa three years ago, geologists from the University of California, using a potassium-argon isotope dating system, were able to show that flat-browed Zinjanthropus lived some 1,750,000 years back in prehistory, the oldest manlike animal yet found. By measuring the amount of potassium 40 and its decay product, argon 40, in a digger's find, scientists conceivably can fix an object...