Word: reflectorized
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...device consisted of a vacuum tube which transformed telephone frequency into the high micro-ray frequency of 1,600,000,000 oscillations a second. Wires carried the oscillations to an antenna two centimetres (less than one inch) long. The antenna was fixed at the focal points of two curved reflectors which faced each other. One, facing in the direction messages were to be sent, was ten feet in diameter. The other suggested a motorcar headlight. The two reflectors concentrated the waves which the antenna emitted into a sharply defined beam. Two of these devices were set up, about...
...Perkins Reflector. Six years ago a new electrically operated telescope, one of the most costly in the world, was installed at the Perkins Observatory, Delaware, Ohio. The telescope required a 69-in. reflector, third largest in the world. The reflector required more than five years to make. Until it was finished the Perkins astronomers got along as best they could with a small reflector loaned by Harvard University. Last week, after being polished for two years, the large mirror was ready to be installed. Director Harlan True Stetson, onetime Harvard astronomer, watched the installation, summed up in his mind...
Above the upper reaches of the stratosphere, higher than man has ever studied, stretches the Kennelly-Heaviside layer of ionized ether which acts as a conductor (or reflector) of radio waves. If man could study these regions he might gather valuable meteorological data, possibly discover new air travel lanes for aircraft of the future...
...Oliver Heaviside and A. E. Kennelly formulated in 1902 their "radio roof" theory: that Earth is surrounded by a sac of ionized ether which acts as a reflector (or conductor) of radio signals. During daytime the sun's light pushes this layer closer to Earth, lessens efficiency of reception. At night the layer rises, reception reaches maximum efficiency...
Harlow Shapley, director of the Harvard College Observatory, yesterday announced that the trans-Neptunlan planet which was recently discovered by the Lowell Observatory, has been photographed by means of the Observatory's 16-inch Metcalf reflector...