Some Vintage Photos, Part 2/2

Charles H. Townes, Columbia University professor and Nobel Laureate, explains his invention the maser during a news conference in New York City, January 25, 1955. The maser, microwave amplification by stimulated emission of radiation, uses directly the energy radiated by molecules of ammonia gas. (Photo by AP Photo)
Some Vintage Photos, Part 2/2
   
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