Word: antennaed
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...short wave station, equipped with a beam antenna which allows the broadcasting of radio waves in a straight line, has been constructed on the roof of the Physics Building by Harry R. Mimne, assistant professor of Physics. With a wavelength of five meters and an antenna which can be raised or deflected on a horizontal axis as well as turned from side to side, it is the only station of its kind in the country. It began operation two weeks ago. Its purpose is purely experimental, and at present, it is carrying on communication with the short wave stations...
...shorter radio waves are the closer they seem to have the characteristics of light waves. A parabolic mirror, set behind an antenna, will concentrate radio waves as it would waves of light. Certain English scientists contend that varied pressure gradients in the air, produced by storms, have the same effect on short waves as layers of glass of varied densities have on light. However, the experiments carried on so far by the new station have led to the conclusion that short waves are not as nearly skin to light waves as was believed...
...incoming liner steering for a light-ship finds its direction by rotating the loop antenna of the radiocompass. The beacon is strongest when the loop is parallel to the direction of the signals, weakest when it is at right angles. Since sound travels much more slowly through water than radio waves through air, the distance of the lightship can be computed by noting the time between reception of the beacon and oscillograph signals...
...Gland") Brinkley's troublesome XER, across the Mexican border, acclaimed itself largest in North America with 75,000 watts. WLW's new 500,000-watt equipment makes it ten times stronger than any of its 20 biggest rivals in the U. S. Most spectacular item is its antenna-a steel frame 831 ft. tall, 35 ft. thick at the middle, tapering up to a slim spire and down almost to a point. Total cost of the venture was close to $500,000. WLW's programs should be picked up by an ordinary set under any conditions within...
...Arthur Brisbane. Westinghouse engineers who have long worked on the problem were able last summer at Chicago's Century of Progress to operate a tiny fan requiring two or three watts by shooting a beam of short radio waves toward a parabolic reflector which focused on a small antenna. Scientists doubted last week that Mr. Gregory, who is a nurseryman as well as an inventor, could have done any better, and their doubts were magnified by a report that his hidden receiver worked by means of selenium cells...