Abstract

Some scientists, such as Fox and Moon and Spencer, have questioned the validity of some of the experimental evidence that is usually interpreted as supporting the second postulate of special relativity, the postulate that the velocity of light is independent of the velocity of its source. Moon and Spencer have shown that the introduction of a certain Riemannian metric can explain observations of binary stars without requiring the second postulate. The purpose of the present note is to suggest a new metric whlch appears to be an improvement over the one suggested by Moon and Spencer, and which makes their argument more convincing.