Word: beaming
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...positive print is placed on a cylinder which revolves 100 times per minute and moves horizontally one inch per minute. A tiny beam of light, trained on the picture at a 45° angle, is reflected to a "light valve." Inside the valve is a shutter which opens and shuts 1,200 times per second. The reflected beam sends the lights & shadows of the picture through the shutter to a conventional photo-electric cell ("electric eye"). There the image is translated into electric impulses which flash over the wires-10,000 mi., if desired-to the receiving machine. The receiver...
...lead their particles like circus animals through a complex series of hoops & hurdles. Beryllium powder was placed in a glass tube containing the radioactive gas radon. Alpha particles from the radon knocked neutrons out of the beryllium. First hurdle was a metal ring which deflected part of the neutron beam toward a cylindrical detection chamber less than an inch across, a half-inch deep. The chamber's door was guarded by a paraffin screen from which the neutrons evicted protons. Having positive charges, the protons ripped through the chamber, freeing ions which were collected on an insulated electrode...
...Professor Black's experiment a beam of light from a small are is passed through a slit, through a half-silvered mirror, and onto a rapidly rotating stainless steel mirror. This sends the light down the length of a corridor in the Research Building, through a special longfocus lens, and onto a plane mirror which reflects it back to the rotating mirror and thence to the half-silvered glass. The opacity of this glass diverts part of the light beam into a microscope where the image of the slit may be watched closely. Because of its great speed, the rotating...
...dream of famed inventor Nikola Tesla and a favorite preoccupation of Columnist 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...
...eight had surprisingly good voices. Young William Horne's was light but it had an engaging, personal quality that made the judges beam. One high note cracked. Mr. Neuer asked for lenience. The aspirants, he said, were nervous. "Sure!" shouted the kindly mastersingers, "we've been there ourselves...