John G Fox

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John G. Fox
Born (1887-01-04)January 4, 1887
Died (1975-12-01)December 1, 1975
Residence Philadelphia, PA, United States
Known for Relativity, Extinction Shift, Emission Theory
Scientific career
Fields Physicist

John G. Fox's 1962 optical experiment remains a challenge to conventional thinking on relativity. He spent most of his career as a research physicist at the Carnegie Institute of Technology in Philadelphia. According to, his 1937 and 1939 papers were written from the University of Sasketoon, Canada, so he might have been a native Canadian. According to Bob Fritzius, John G. Fox died around 1976, though it's not certain that the John Fox born in 1887 is the same man. Would expect John G. Fox to have been born after 1900. Articles:

  • "Differential Cross Section for Elastic p-p Scattering at 435 Mev," Physical Review, S2, V90, pp. 712-713 (1953). [with J. A. Kane, R. A. Stallwood, R. B. Sutton, T. H. Fields]
  • "E/m for 385-MeV Protons," Physical Review, S2, V90, p. 378 (1953). [with D. J. Grove. N2 ends with p. 355 & N3 began with p. 393. What happened to the intervening pages?]
  • "Experimental Evidence for the Second Postulate of Special Relativity," American Journal of Physics, V30, N4, pp. 297-300 (Apr 1962).
  • "Evidence Against Emission Theories," American Journal of Physics, V33, N1, p. 1-17 (Jan 1965).
  • "Constancy of the Velocity of Light," Journal of the Optical Society of America, V57, N7, p. 967 (1967).
  • Many other articles at, some dated as early as 1939.
  • Letter to Bob Fritzius, April 21, 1975.