• Source: Neal H. Williams

      • Neal Hooker Williams (1870–1956) was a physicist notable for the very first spectroscopic measurements at microwave frequencies. He carried this out with a magnetron and investigated the spectrum of gaseous ammonia together with his student Claud E. Cleeton. This formed the groundwork for the later inventions of the radar and the gas laser.


      Education


      He completed his PhD in 1912 at the University of Michigan with a thesis entitled The Stability of Residual Magnetism.


      Books by Williams


      Walter S. Huxford and Neal H. Williams, Determination of the Charge of Positive Thermions from Measurements of the Shot Effect, Minneapolis, Minn., 1929.
      Claud E. Cleeton and Neal H. Williams, Electromagnetic Waves of 1.1 cm Wave-Length and the Absorption Spectrum of Ammonia, Lancaster, Pa., Lancaster press, inc., 1934.
      Harrison M. Randall, Neal H. Williams, and Walter F. Colby, General College Physics, New York, London, Harper & brothers, 1929.
      Neal H. Williams, The Stability of Residual Magnetism, New York, 1913.


      See also


      Trigonal pyramidal molecular geometry
      Ammonia
      Microwave spectroscopy
      Claud E. Cleeton


      References




      = Sources

      =
      Mario Bertolotti, The History of the Laser CRC Press, 2004, ISBN 0-7503-0911-3.


      External links


      Williams' 1936 Physical Review paper
      Williams in classbook of 1928
      Williams' math genealogy

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