Word: temps
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Dates: during 1950-1959
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...study of these records gives clues about the high atmosphere. The waves that make the 160-mile jump experience various vicissitudes. In the warm air near the earth they move fast. Then they slow down gradually as the air grows colder. Passing through the stratosphere (temp. - 70° F.) they hit a warmer layer of air 30 to 35 miles above the earth which turns them back down to the microphones...