Universal One-Way Light Speed from a Universal Light Speed Over Closed Paths
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- Minguzzi, E. & Macdonald, A. Found Phys Lett (2003) 16: 593. doi:10.1023/B:FOPL.0000012785.16203.52
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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 is important from an historical perspective.