another poor wikipedia article the conclusion of this experiment has been disputed yet the article states it as a fact the most recent discussions agree that it does not prove time dilation no discussion of the extensive controversy is discussed here dingle and ives in particular disputed the conclusions the problem is that this experiment really proves ives theory if it is true since the conclusion assumes the existence of the fresnel aether in order to justify the time dilation claim so if you beleive this experiment you have to beleive in ives aether theory and not special relativity