Word: beaming
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Dates: during 1920-1929
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...shoot poisoned arrows. Dr. Christy journeyed to the Ituri Forest on the Equator, west of Lake Albert and overlooked by the lofty snow-range of the Mountains of the Moon. There he lived for weeks in one of the Pygmy camps. After many disappointments, he at last saw a beam of sunshine fall upon the chocolate-colored back of his rare quarry. "Crack!" went his Winchester. The okapi died in great agony. Excepting an elephant-hunter who had previously shot an okapi but failed to preserve the skin, all other Europeans have depended on the natives' clever trapping...
...concentrated in a small spot at one corner of the film. At the receiving station a blank film is formed into a similar cylinder. By a device known as a synchronizer, the cylinders at both ends are started simultaneously and turned at the same rate of speed. The light beam travels in a continuous line over the picture, until it reaches the opposite side. In the center of the cylinder is a "photoelectric cell," consisting of a rod of potassium in a vacuum tube. It is so sensitive to light that any ray falling on it causes the electrons...
...placed in a strong magnetic field. The wall forms one side of a narrow slot through which the light passes. The fluctuations in the current passing through the magnetic field move the metal wall back and forth according to their intensity, making the slot wider or narrower. The light beam, passing through the slot, falls on the revolving cylinder, printing broader or narrower lines of light on the film. With each revolution the cylinder is jerked 1/65th of an inch to the right, and the spot traces another line exactly parallel. This interval was found the best for newspaper pictures...
...club whose members never see each other's faces." The North Texas Radio Phone Club meets on Sunday afternoons; "each member answers to roll call, speaks in turn while the others listen in." In London, it was announced that the possibility of transmitting radio messages in a "beam"* between England and Australia is "likely to be demonstrated soon...
...Beam messages" would be turned in any desired direction, like the beam of a searchlight, as opposed to the present system in which the waves are sent out in all directions...