Experimental verification of ballistic theories of light in Russia and the soviet union

Abstract

A review of experimental works that were performed in this country devoted to investigation of the independence of the speed of light on the velocity of a radiation source is given. Factors that are capable of giving rise to inaccuracies and errors in these measurements, which affected the results of early experiments, are analyzed. It has been shown that the most convincing results in this field were obtained in measurements of the velocity of synchrotron radiation when the radiation source is a bunch of electrons moving along a circular trajectory at a velocity close to the speed of light. In particular, recent experiments that were performed by E.B. Aleksandrov et al. with an accuracy no worse than 0.5% show that the speed of light does not depend on the velocity of the radiation source. It has been shown that almost all the first experiments on the verification of ballistic theories of light were performed in Russia and the Soviet Union.