Word: waves
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Dates: during 1950-1959
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...talking much. He was very grateful to Kefauver for his "gracious, spontaneous expression of support." He thought Kefauver was only one among "many qualified candidates for Vice President." It was a long way from an endorsement of anybody-arithmetic or no. In fact, it was something like a friendly wave from the cab as the engineer rolls along the iron without even having to look at his pocket watch to see what time...
Weather radar works by sending out pulses of radio waves which are reflected by raindrops, hailstones and other precipitation particles. Shorter waves rebound from the tiny drops of moisture of a cloud's surface. The longer wave bands penetrate clouds like X rays, show only the inner core (if any) of heavy rain or hail.- Thus, by varying wave bands and pulse lengths, the new weather radars can look at a cloud as a whole or can look deeply into it, or even through it. They can measure accurately a cloud's altitude -a matter of critical importance...
...Radar of these wave lengths is also used by shipboard radars designed to penetrate fog, was the type installed on the Andrea Doria and the Stockholm...
Announcer: A wave that stays-on hot and humid days? This summer have a wave that really holds up, a wave with more natural body than any other permanent...
When a meteor-even if it is no bigger than a grain of sand-hits the earth's atmosphere, it leaves a long trail of ionized particles 60 miles up. Radio communications men have known for years that these trails act as wave reflectors, and they have tried to use them to make certain very short waves, which normally stop at the horizon, carry messages far around the curve of the earth. Chief difficulty was that most of the ionized trails last only a second or so. Before one of them could be located and used as a reflector...