Word: ultraviolet
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Dates: during 1930-1939
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...between harvest and planting. Others followed in slow but steady succession. Some kinds of apples with green-colored skins may be just as ripe and tasty as red apples but suffer in market competition because buyers like the appearance of red apples. It was learned that 48 hours of ultraviolet radiation turns green-colored apples a beautiful, even, overall shade...
Entomologist Frank Eugene Lutz of Manhattan's American Museum of Natural History has discovered that bees can see ultraviolet light. If the bee's food receptacle is labeled with a card painted ultraviolet-white, the bee will soon learn to select that card among plain white cards which to the human eye seem indistinguishable from the one selected. No entomologist would use this visual faculty to lure to destruction the useful honey bee. But in Lafayette, Ind., scientists of Purdue University pondered ways of coping with the codling moth', a mottled, foreshortened little creature whose larvae develop...
...iconoscope was ready for use as the "eye" of a powerful ultramicroscope. Its field of operation extends on both sides of the visible light spectrum -up to 10,000 angstrom units on the infra-red range, down to 1,000 on the ultra-violet.* This point on the ultraviolet side is 2,000 units lower than in other ultramicroscopes. If organisms never seen by human eye do exist in the filtrable viruses of common colds and infantile paralysis, they might be detected by light of such short wavelength. Light of longer wavelength they escape as minnows escape a loose-meshed...
...York unable to understand the front page of his newspaper. Vocational training: Our entire scheme . . . must be revamped. ... To this day we're teaching boys to be wood-workers. But are we training them to be steelworkers or experts in the fields of refrigeration, neon lighting, ultraviolet rays? We are not. Johnny Jones: Our schools today are enormous. In the DeWitt Clinton High School, for example, there are about 11,000 pupils. In that mass of youngsters we've got to get hold of Johnny Jones and fit him for his world and for his time...
...favorite was Soprano Marion Talley, a local telegrapher's daughter whose career Storeman Seigmund Harzfeld helped to finance. This year's music chief is doughty Powell Campbell Groner, president of Kansas City Public Service Co. Burned though he was from going to sleep under an ultraviolet lamp, he appeared last week in Convention Hall to introduce the orchestra which the Kansas City Times headlined as a "triumph in music...