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Letters to Nature
Nature 224, 1189 (20 December 1969) | doi:10.1038/2241189a0
Concerning the Energy Independence of the Velocity of Light
BRUCE C. BROWN
- Department of Physics, University of California, San Diego, La Jolla, California 92037.
Abstract
SEVERAL articles containing new evidence concerning the energy independence of the velocity of light contain statements which should be clarified. The postulate of the constancy of the velocity of light is standard for the derivation of the theory of relativity. It is possible to modify electromagnetism, preserving special relativity but introducing a vacuum dispersion; however, many experimental tests of the velocity of light as a function of energy intend to test the relativity postulate. One should therefore be careful in analysing these experiments in terms of concepts, such as those suggested by Professor Synge1, which are valid only if relativity is correct.
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