Word: ultraviolet
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Dates: during 1930-1939
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...cleaner with headlights, refrigerator, dishwasher, food-mixer, curling irons. In the farm shop lathes and tools were electrically operated. Wood was cut by an electric saw. In the brooder house chicks were warmed in an electric incubator, while in the poultry house hens were urged to extra efforts by ultraviolet ray lamps. Hogs were kept in their wallow by an electric fence which gave them a 90-volt jolt if they touched it. An electric sprinkler system kept the cabbage patch damp...
...sanitary science at the Harvard School of Public Health, has made oyster eggs germinate artificially and by means of artificial sunlight made germs vanish from thin air. Last week after working persistently against smaller & smaller forms of life, Biologist Wells was able to announce that by means of ultraviolet light he destroys the minuscule cause of influenza as it floats...
Biologist Wells's Harvard experimental laboratory is a steel, glass-lined tank big as a dentist's operating room. Within is a mercury quartz lamp which emits ultraviolet light. The air within the tank Mr. Wells can make as pure or as germ-laden as he pleases...
...human eye were tuned to longer wave lengths of radiation, it would be able to see radio waves. The ethereal wiggles that gird the globe with speech and music are part of the same electromagnetic spectrum which includes visible light, ultraviolet and infra-red radiation, x-rays, gamma rays from radium. Hence under ideal conditions radio waves travel at the velocity of light - about 186,270 mi. per sec. - and for many a year radiomen assumed that wireless signals always traveled at that pace in their journeys around Earth. Last week Dr. Harlan True Stet son of Harvard informed...
...Durham, N. C.'s Duke Hospital, Surgeon-in-Chief Julian Deryl Hart last week braced himself to answer a barrage of questions excited by a report in Modern Hospital concerning novel use of ultraviolet light as an antiseptic agent in operating rooms. Over his operating table Dr. Hart had rigged a grid of light tubes which project an invisible light which within five minutes effectively kills almost all germs within a radius of five feet...