True Transformations of Spacetime Lengths and Apparent Transformations of Spatial and Temporal Distances. II. the Comparison with Experiments

摘要

Some of the well-known experiments: the ''muon'' experiment, theMichelson-Morley type experiments, the Kennedy-Thorndike type experiments andthe Ives-Stilwell type experiments are analyzed using the nonrelativistictheory, the ''apparent transformations (AT) relativity'' and the ''truetransformations (TT) relativity.'' It is shown that all the experiments (whenthey are complete from the ''TT relativity'' viewpoint) are in agreement withthe ''TT relativity'' in which the special relativity is understood as thetheory of a four-dimensional spacetime with the pseudo-Euclidean geometry. Itis also explicitly shown that, in contrast to the usual opinion, the commonlyused ''AT relativity'' does not always agree with experiments. The concept ofsameness of a physical quantity is essential for the distinction between thetwo forms of relativity both in the theory and in experiments. The differencein this concept causes the agreement of the ''TT relativity'' with theexperiments and the disagreement of the ''AT relativity.''