The One-Way Speed of Light
The Physics arXiv Blog
293

But what is the value of speed of electric sygnls that move from sensors T1, T2, D1, D2 to your computer.
The experiment has also closed path.
Firstl the light moved between the elements HD and later the electrical signal moves in the other direction. 
Electrical signal also move with a speed close to c that depends on the direction.

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