Word: infra
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Seeing Things at Night. In London, Engineer John L. Baird, experimenter in wired television (TIME, Feb. 22), demonstrated his success at utilizing rays adjacent to the visible spectrum-invisible infra-red rays-to see things in complete darkness by mechanical means. The process involved isolating the invisible rays at their source (a special "search-light") and passing them through or to a medium that would render their effect visible. Since infra-red rays can be cast farther than any visible rays, and will penetrate fog and smoke more readily, the inventor predicted important military uses...
...paragraph on "Smoke Photography" which appeared on p. 16 of the Aug. 30 issue is not quite accurate. The film, which is sensitive to infra-red rays, which penetrate haze (scarcely smoke), is sensitized with "kryptocyanine." This dye is not a secret in spite of its name; it was discovered by Adams and Haller at the color laboratory of the Bureau of Chemistry in 1919 and is made in our laboratories by Dr. H. T. Clarke. After many attempts we have succeeded in using it for sensitizing film...
Smoke Photography. Aerial photographers at McCook Field, Ohio, gave full credit to the Eastman Kodak Co. for new "K-panchromatic" plates by which flying observers can photograph the earth through smoke screens and light fog. The plates are treated with a secret cyanide, "krypto-cyanide," sensitive to infra-red rays which, though invisible to the eye, penetrate smoke and water vapor to record an image in the camera. The significance: protection for wartime mapmakers...
...service, with a nine-inch lens (the largest ever ground for a camera) to photograph the earth from an altitude of seven miles or so. Experts of the Eastman Kodak Company (Rochester, N. Y.) had fashioned it, providing also a film specially sensitized to record light at the infra-red (long wave, dull light) end of the spectrum, a film taking exposures nine inches square, 100 exposures to a roll. Lieut. George W. Goddard will soon have the camera mounted in the rear cockpit of his plane, at the flying post in Dayton, Ohio, with a heating apparatus around...
Never once did the committee come within four aces of averting a strike. It would have been infra dig for both operators and miners (accustomed to the intervention of U. S. Presidents, or, at the least, of Pennsylvania Governors) to lie down together at the behest of the local citizenry...