Word: echoing
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Dates: during 1940-1949
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...once more, a gleaming and irresistible target for females with an urge to write with lipstick. Between the last tick of 1945 and the first tock of 1946, U.S. citizens would consume enough alcohol to float a rinkful of ice, and the thin, happy bleat of paper horns would echo from time zone to time zone in pleased disregard of the atomic age and all waiters...
...premise of early New Deal days that Congress exists merely to echo the executive's orders had long ago been discarded. Congress has taken a healthy interest in debate. But the methods of controlling the debate, of channeling and guiding legislation, of bringing order out of the normal Congressional chaos seemed to have broken down. Too many Congressmen frankly took the view that Harry Truman did not mean everything he said and that therefore all his proposals did not need serious attention. And in Congress itself the Democratic leadership, uncertain of its aims, had broken down. It could...
Electronic jammers are high-frequency radio transmitters which bombard a radar installation with radio waves of the radar's own frequency, thereby obscuring the detectable echo on the radar viewing scope. Allied bombers and ships were armed with these electronic jammers, labeled as "Carpet", for use in foiling detection. For defensive purposes, particularly against enemy air-borne radar, very powerful long-distance, ground-based jammers, called "Tuba", were used...
...method, "Window", involves the seemingly simple procedure of dropping huge quantities of light aluminum foil from planes on bombing missions. It was discovered the small strips of aluminum, which is an excellent radio reflector, would, if cut to one half a radar's wavelength, send back a disproportionately strong echo...
...ounce bundle of six thousand such trips, called "Chaff" by the American, dropped from a plane and scattered in the air, gives an echo resembling that of three bombers on a radar scope. Large numbers of these small bundles scattered through the sky can effectively screen whole formations of bombers from enemy radar; similarly, the "Chaff" dropped by one plane can present the illusion of a mass raid where there is no raid...