Word: radars
(lookup in dictionary)
(lookup stats)
Dates: during 1940-1949
Sort By: most recent first
(reverse)
...Peter C. Goldmark, 39-year-old, Hungarian-born inventor of color television, unveiled equipment developed since V-J day. For an hour, an ingenious new receiving set was tuned in on a filmed fashion show and football game, a Disney color short. The broadcast was over ultra-high frequency, radar wave lengths. The reception, as vivid as a Van Gogh painting, made black-&-white television look antiquated. Boasted CBS: "the insurmountable obstacles" have been hurdled; in a year, if the demand is great enough, color television can be in the U.S. home...
First step in the Rickenbacker plan: a photographic and radar survey of the 5,000,000-square-mile Antarctic continent. From Tierra del Fuego, Tasmania and South Africa, long-range bombers would make three wide sweeps across the polar area, flying distances up to 6,500 miles. Weather, rescue and emergency air stations would be manned by "paratroopers" at Little America and other places. Next step: sites for base camps would be selected, and sleds, dogs and scientists would be flown in for further exploration of the more promising bomb targets. Suggested base for the bomb-carrying planes: New Zealand...
Until Jan. 10, 1946, scientists had been experimentally limited to the earth and to a thin shell of air around it. Last week, the U.S. Army Signal Corps announced a scientific milestone: on Jan. 10 (and several times since), its radar at Belmar, N.J. had sent a message to the moon and got an answering echo. Man had finally reached beyond his own planet...
...Wiggle. Soon after V-J day, the Signal Corps put Lieut. Colonel John H. DeWitt, a former radio "ham," in charge of a project called "Diana" (goddess of the moon, the wood, childbirth). No radically new apparatus was used, only a modified version of the standard "SCR-271" radar set, operating on its regular, fairly high frequency of 112 megacycles. The key play was in not sending out thousands of "pulses" of radio energy per second, which would not have allowed enough time in between for the moon echo to return; instead, Belmar sent out only one half-second pulse...
...variable, as some suspect, science's present conceptions of the universe would have to be scrapped. Since radio waves travel at the same speed as light, and the distance from the earth to the moon can be figured closely by triangulation, measuring the time it takes for a radar echo to come back from the moon should provide astronomers with a continuous check on the speed of light-and a double check on Dr. Einstein...