Word: antennaed
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Dates: during 1960-1969
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...antenna will replace a ten-year-old, 60-foot dish now in use at the Observatory's radio telescope center at Agassiz Station in Harvard, Mass. The addition will double both the area the sensitivity of the Observatory's radio system...
...existing antenna--one of the smallest still used for research--works only up to a frequency of 1600 million cycles per second, Arthur E. Lilley, director of the station, said yesterday. The new antenna and a battery of receivers now under construction will move that range up to 5000 mc/s...
Immediately after World War II, astronomers all over the world hastened to build steel-ribbed parabolic dishes and ungainly rows of spindly antenna arrays. They even lined a small valley with wire mesh and began to scan the skies for radio sources. These pioneer radio astronomers scanning the sky "saw" only blotchy, vague shapes-like street lights dimly seen through...
Strange Lines. In 1962, a group of radio astronomers led by Cyril Hazard tried a subtle tactic in an effort to pinpoint a strong radio source that searchers with optical telescopes could not identify. Pointing the Parkes, Australia, 210-ft. dish antenna toward the source, known only as 3C 273,* Hazard's group recorded the precise time that its signals were eclipsed, or blotted out, by the sharp leading edge of the passing moon and the time when they reappeared from behind its trailing rim. Because the position of the moon can be accurately calculated for any given time...
Only after these problems are corrected (sometimes at the price of a special "color-rated" antenna) can the viewer hope to find happiness with his color-control knobs. The INTENSITY knob (labeled COLOR on some sets) determines the quantity of color, the richness of the palette, so to speak; its adjustment is a matter of personal taste. It is the other knob, the TINT or HUE, that is crucial-it determines the tone...