Word: ultraviolet
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Dates: during 1940-1949
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...designing or building machinery. Dr. Harden used his laboratory as a factory and tried every short cut he could think of. First step was pouring a solution of uranium salt and other chemicals into a battery of wooden washtubs on the roof. There the photochemical action of the ultraviolet rays in sunlight (on cloudy days, sun lamps) converted the transparent liquid into green, powdery potassium uranium fluoride. The second step: melting this secondary uranium salt in graphite cups for electrolytic separation of the pure metal. The electrodes were raised and lowered by automobile jacks. The final step was simple melting...
...both. He is as well stocked with football lore as Doc Blanchard's father was, and he has enough pain-curing equipment to stock a hospital for hypochondriacs (which Cadets are not). Some of Beaver's newer gadgets: an infra-red lamp for bruises and sprains, an ultraviolet lamp for infections, a paraffin oil bath to provide extra heat for sprains, a short-wave diathermy machine for deep-penetration heat, frigidaire ice packs for inflammations...
Hoping to improve its citizens' teeth, Newburgh, N.Y. is fluorinating its water supply. Last week another such town-wide test was announced: Pleasantville, N.Y. (pop. 4,357) home of The Reader's Digest, plans to try ultraviolet lamps in its three schools, seven churches and one movie to see if the rays will reduce colds, measles, mumps, etc. Nearby Mount Kisco, about the same size-and lampless-will compare notes with Pleasantville for the three years the experiment runs...
Only once has the foundation's rule over vitamin D come close to being broken. Year ago, California's southern district court held that the Steenbock patents were invalid because ultraviolet radiation was a nonpatentable "process of nature." The foundation demanded a rehearing; two months ago, the court withdrew its earlier opinion. (Recently the foundation slashed its royalty charges...
Crux of the Chicago discovery is the use of ultraviolet rays strong enough to kill the germs but not strong enough to ruin their ability to create immunity when injected into a living body. To accomplish this, a special lamp had to be developed (details are being kept secret by the Office of Scientific Research and Development). Old-type ultraviolet lamps take so long to kill germs that they destroy immunizing power as well...