Abstract
IT is the purpose of this note to direct attention to the importance of a recent experiment1 on the constancy, with time, of the frequency of light from an emitting atom, from the point of view of the general relativity theory, or any other theory of space-time structure. In the experiment in question, light is sent over two paths of different length and made to interfere at the point of observation. The number of waves retardation was measured as a function of time with the result that a measured retardation of 1·4 ± 1·1 × 10–5 fringes per day was observed for a path-length of 582,000 wave-lengths. The conclusion is that either a frequency increase of
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References
Kennedy, “The Velocity of Light”, NATURE, 130, 277, Aug. 20, 1932.
McVittie, “Dirac's Equation in General Relativity”, Mon. Not. Roy. Astro. Soc., 92, 868–877, Oct. 1932.
Mason, “A Newtonian Gravitational System and the Expanding Universe”, Phil. Mag., Ser. 7, 14, 386, Sept., 1932.
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MASON, W. Constancy of Light Frequencies and the General Relativity Principle. Nature 132, 100–101 (1933). https://doi.org/10.1038/132100a0
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DOI: https://doi.org/10.1038/132100a0
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