ONE-WAY SPEED OF LIGHT

If now the observers in the reference system \(K\) remove the supporting cylinder and, having ensured that the linear velocity of the ring remained \(v\), allow the ring to contract, then the rotating ring will shrink according to the results of their measurement, reducing the diameter and the length \(\Gamma\) times. According to the results of the measurements by the observers on the ring \(k'\), the ring restores its original length, which it had before its acceleration, but the ring \(k\) after shrinkage of the ring \(k'\) becomes longer. That means that the observers on the ring \(k'\) and the observers in the reference system \(K\) will find that the non-rotating ring \(k\) is located outside the ring \(k'\)... It is shown that the one-way speed of light on the surface of a rotating body depends on the direction of its propagation, while the average speed of light on the way back and forth along the trajectories of the points on the rotating surface remains equal to constant..