Word: reflection
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Dates: during 1950-1959
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...record, Mamie Eisenhower is not a woman to be awed by fame, but neither is she the sort who seeks for herself, or strives to reflect, the fame of others-even of her husband. In the rarefied atmosphere at SHAPE she has seen no reason to be anybody but the same Mamie Eisenhower who was a belle in Denver (everyone said she really looked a lot like Lillian Gish), the wife of an obscure young subaltern in the 1920s (she still plays piano by ear at parties, as she did in the old garrison days), and a woman...
...function of the force we must build is to ensure that we shall continue to have freedom of choice . . . freedom to bring into play all the affirmative measures that have to do with the way people live, and that reflect the whole constructive outlook of America. The function of the force we must build is to prevent these opportunities from being foreclosed by the use of force from the other side . . . We believe that war will not happen if we can create in areas of political tension sufficient strength so that it will be absolutely clear in advance that...
High-frequency TV waves have long been considered undependable at more than line-of-sight distances, i.e., from transmitter to horizon. They punch through the ionosphere (ionized layers in the atmosphere which reflect lower-frequency radio waves), and so are lost in space instead of curving conveniently around the bulge of the earth. Once in a while a TV picture is received strongly at a great distance, but such events are freaks which cannot be counted upon...
Last week the National Bureau of Standards was proclaiming that high-frequency waves do reflect from the ionosphere and can get around the earth's curve. The bureau got the Collins Radio Co. of Cedar Rapids, Iowa to slant a powerful beam of 49.8 megacycle waves into the air in the direction of its own Radio Laboratory at Sterling, Va. The distance between transmitter and receiver is about 800 miles, so the signal might be expected to come through only in freakish bursts...
...bureaumen now believe that the ionosphere is not entirely transparent to high-frequency waves (above 30 megacycles). They think its ionized layers are stirred into turbulence, perhaps by meteors, and that patches of its gas are always in a condition to reflect small amounts of high-frequency energy...