Word: signalsâ
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Radio Cinema. A "primastic ring" made a tiny point of light travel across a photographic plate in a succession of parallel adjacent lines, the strength of the light varying with the strength of incoming radio signals???a process much like that used by grandmothers in producing the image of a penny by blacking with their pencils a paper pressed over a coin. Result: wireless photography. Prophecies: the auditor of a radio account of a baseball game, or of an inaugural address, or of a scouting aviator's running report, would some day see the players, the President, the battle...
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