Abstract

In 1905 Einstein said that the phenomenon of electromagnetic induction "depends only upon the relative motion between a magnet and a conductor." But this is not true in general, as demonstrated by the history of unipolar induction experiments, especially the one by Kennard in 1917. The author has generalized the Kennard experiment in two experiments of his own: (a) a rotational experiment with permanent magnets and (b) a linear translational one with the same magnets. Neither the special nor the general theories of relativity can explain the results of these experiments. Einstein himself said that only a single experiment disagreeing with his theory would totally invalidate it; therefore it has been invalidated. in the laboratory.