Word: ultraviolet
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Dates: during 1960-1969
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...ULTRAVIOLET LIGHT. After a riot has been quelled, invisible particles that have been sprayed on the mob "will show up when police, using special scanners, interrogate people at identification checkpoints, and will thus enable them to identify mob participants...
...Chicago News devoted twelve column inches to NBC's plan to use ultraviolet-light transmitters in the Cow Palace. THE BATTLE OF COMPUTERS: A TV THRILLER, headlined the Detroit Free Press. In New York, under a no-surprise headline-NETWORK CARAVANS CARRY TV GADGETS AND MEN TO COAST G.O.P. RALLY-the Times totted up the logistics of the move: 1,500 TV hands, nearly 50 miles of cable for NBC alone...
When a nurse wanted to give them food or medicine or a bedpan, she took it from a sterile cabinet, pushed it through an outer port in the console, and closed the door. Automatically, ultraviolet radiation was switched on to kill off late-arriving bacteria. Then she slipped her hands into the long gloves built into the side of the plastic. With these, she could reach any part of the interior. She opened the inner port of the air-lock and passed the article to the patient. When he had finished, whether with meal tray or bedpan...
...Chollar, the company's head of research, calls photochromic micro images, or PCMI. The film has none of the silver halide grains that are the vital element in conventional photographic film; instead there is a very thin layer of a dye that darkens rapidly when exposed to ultraviolet light. The resulting picture has no "grain." Images of Bible pages projected in ultraviolet were reduced by lenses and focused one by one on the dye. After each exposure the film was moved mechanically to array the tiny pages in close-packed rows. This miracle of miniaturization, which makes the traditional...
While hailing the miniaturizing ability of PCMI, the company's scientists think it has another talent that is even more important. Records made by ultraviolet light are easily correctable. When the recording operator or one of his machines makes an inevitable mistake, the unwanted page can be erased by one quick flash of yellow light. A new page can be printed by ultraviolet in the same place. The observer can watch both erasure and printing in green light, which does not affect the sensitive...