Universal One-Way Light Speed from a Universal Light Speed Over Closed Paths

  title={Universal One-Way Light Speed from a Universal Light Speed Over Closed Paths},
  author={Ettore Minguzzi and Alan Macdonald},
  journal={Foundations of Physics Letters},
This paper gives two complete and elementary proofs that if the speed of light over closed paths has a universal value c, then it is possible to synchronize clocks in such a way that the one-way speed of light is c. The first proof is an elementary version of a recent proof. The second provides high precision experimental evidence that it is possible to synchronize clocks in such a way that the one-way speed of light has a universal value. We also discuss an old incomplete proof by Weyl which… Expand

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