Evaluation of some aspects of relativity

If the relativity theory is to predict experimental results about the rates of clocks, the time intervals must be defined in such a way that they are capable of measurement. When this is done the confusion which has been associated with the theory is explained. The theory is shown to be self-consistent up to a point, but an error is then made in the course of a ‘thought experiment’. The result given does not follow from the ‘experiment’ but from an additional assumption made implicitly. The same kind of error is made in the ‘thought experiments’ in Einstein's later papers. The results again follow from implicit assumptions and not from the ‘experiments’. His final assumptions that time dilatation is a consequence of acceleration or gravitational potential are supported by the results of recent experiments.