Word: beams
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Dates: during 1950-1959
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Primitive television systems used a "flying spot." A thin beam of light scanned the scene, and its reflected brightness as it crossed light and dark areas was turned by a photosensitive cell into an electrical signal. Changed back into light, the signal produced an image that bore a vague resemblance to the original scene...
Such a system had many failings, most of which came from the clumsiness of the mechanical moving parts. They were replaced by the modern television camera tube, which has no moving parts except a beam of quickly obedient electrons. But the flying spot did not die entirely. Last week Allen B. Du Mont Laboratories described a new system of televising indoor scenes in color by means of a thoroughly modernized flying spot of light...
Driverless Tractor. An electronically guided tractor for pulling carts in factories was demonstrated by the Barrett-Cravens Co. of Chicago. Operating without a driver, the tractor follows an electronic beam to its destination, waits until the carts are loaded or unloaded, then proceeds on its way. Should something get in its way or divert it from its electronic track, it emits a series of warning beeps until the obstruction is cleared. Price for tractor and controls...
...miles) navigational aids such as radio ranges and Omni Range have long been used to guide U.S. aircraft, with pilots switching from one station to another enroute across the country. But when a jet flyer, moving upwards of 600 m.p.h., tunes in on an Omni Range or a radio beam, he is often out of range before he can calculate his position...
...Azores to Seattle will be able to take a radio bearing into their electronic apparatus, measure their distance from Camden by comparing signals from the three antennas, and pinpoint their positions within ten miles. When a pilot gets close to his destination, he will switch from Navarho's beam to a short-range station, follow it in to the airfield...