June 16, 2014
Einstein put in his papers: “If two clocks are synchronized while in close proximity to each other, then one of them is taken away for some time, perhaps on a journey, then they are brought together, they will no longer be in tune with each other. The clock which has been in motion will have recorded time more slowly than the clock at rest.” OK! Einstein's theory is proven, but Einstein did not say what the “secret” that causes the paradox. This essay shows the secret of the clocks paradox in relativity. What is the secret? It is INERTIA.