Word: infra
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Dates: during 1960-1969
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...observers were stealing no secrets; they were checking on their own work. The bright gleam of infra-red light that they had seen through the snooperscope bore out their suspicion that they had stumbled on a new and revolutionary kind of communication device...
...smaller office copiers for sale. Evanston's American Photocopy Equipment Co. and Eastman Kodak Co. with its Verifax dominated the "wet copying'' field, which uses chemical developers; Minnesota Mining & Manufacturing Co. had its fast-selling Thermo-Fax, a dry method that uses heat from an infra-red lamp to form an image on specially coated papers. But the Xerox machine had a special appeal. It is a dry method that needs no chemicals, can duplicate anything from grease pencil to ballpoint pen, though it is more successful in copying type than photographs. The 914 makes copies...
Target for the night was Mars, riding ever higher in the sky as the night advanced. After a little guidance trouble, the soaring scope found the planet and focused its concentrated reddish light into a spectrometer that measured infra-red rays, recorded the readings on magnetic tape and transmitted them simultaneously to the ground. After a 12-hr., 700-mile flight, the balloon and telescope landed gently in Tennessee...
...spectroscopic studies should yield new information on the atmosphere and climate of the red planet. Mars has no light of its own. The light that it sends to the earth is sunlight that passes down through the thin Martian atmosphere and is reflected out again. Loss of certain infra-red wave lengths during these two passages will prove the presence of water vapor, carbon dioxide and other interesting, life-supporting constituents...
...they are hydrocarbon droplets similar to the water droplets in earthly clouds. The droplets condense in the cool top of the atmosphere, but stay in vapor form in the lower parts, where the temperature rises above 200° F. So the dark Venusian surface has clear, compressed, oily air. Infra-red rays from the sun penetrate both clouds and atmosphere, but are hindered by the CO2 when they try to escape. This trapped energy keeps the surface so hot that no life known on Earth could possibly survive there...