Word: reflectors
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Dates: during 1940-1949
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Mimno will soon finish building a parabolic steel reflector in Lexington. Bigger than the average House living-room, the reflector will aim radio waves as an automobile headlight aims light rays...
Dish. A microwave reflector...
Neutrons can be reflected by layers of materials (such as graphite) that bounce them back without absorbing them. A good reflector turns back as much as 90% of the neutrons hitting...
...several occasions during the hearings, John Lewis had had to reassert the majesty of his person. On Wednesday, when a cameraman tried to take his picture he swung his cane and dented the cameraman's reflector. On Friday, when a bailiff had the temerity to tell him to take off his hat as he stalked back into Judge T. Alan Goldsborough's court after lunch, he simply ignored the fellow. He removed his coat, folded it with exaggerated care. When he was good & ready, he took off his large hairy black hat and sat glaring in front...
...other gadget: sonar, radar's supersonic cousin. A sonar-equipped locomotive, by means of an oscillator and amplifier, would keep sending out whistle blasts pitched so high that nobody could hear them; but if a signal box ahead had its danger arm up, a reflector would send back the sound waves to the locomotive. There a microphone would detect the supersonic racket, a bell would ring (or a light flash), and the engineer would throttle down to his foggy-foggy...