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Edgerton, Harold E.

Edgerton, Harold E.

▪ American electrical engineer and photographer
in full  Harold Eugene Edgerton 
born April 6, 1903, Fremont, Nebraska, U.S.
died January 4, 1990, Cambridge, Massachusetts

      American electrical engineer and photographer who was noted for creating high-speed photography techniques that he applied to scientific uses.

      Edgerton earned a bachelor's degree in electrical engineering from the University of Nebraska in 1925 and received master's (1927) and doctoral (1931) degrees in the same field from the Massachusetts Institute of Technology (MIT) in Boston. He taught at MIT from 1928, becoming a full professor there in 1948.

 In 1926, as a graduate student, Edgerton began to experiment with flash tubes (flashtube). He developed a tube using xenon gas that could produce high-intensity bursts of light as short as one millionth of a second in duration. Edgerton's tube is still the basic flash device used in still photography. The xenon flash could also emit repeated bursts of light at regular and very brief intervals and was thus an ideal stroboscope. With his new flash Edgerton was able to photograph the action of such things as drops of milk falling into a saucer, a tennis racket hitting a ball, and bullets hitting a steel plate or traveling at speeds of up to 15,000 miles per hour (24,100 kilometres per hour). The resulting images often possessed artistic beauty in addition to their value to industry and science.

      Edgerton explored many uses for his new photographic equipment. During World War II he constructed stroboscopic units to photograph the night operations of enemy troops. After the war he and his associates photographed nuclear test explosions. He later devised methods and equipment to photograph sea life at unprecedented depths.

Additional Reading
Roger R. Bruce (ed.), Seeing the Unseen: Dr. Harold E. Edgerton and the Wonders of Strobe Alley (1994).

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Universalium. 2010.

  
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