What is one way speed of light is about? Why is it said undefined?

dimanche 13 juillet 2014

I've gone though a lot of google searches and couldn't find the reason why one way speed of light is undefined.

All i know is that it is about synchronizing clocks.

So i made my own thought experiment



Imagine two clocks A & B. Both are not active

I keep A with me and keep B at 1 light second away.

First i send a signal to B to activate its clock



When A sends a pulse, it's clock starts running from 0 seconds and when it reaches B, it reads 1 second on it. So that we have two clocks that runs at same rate.



Now i send a pulse to B when A reads 10s.

Since B is 1Ls away, the pulse will reach there in 11s of B time. So now i can subtract 11-10 and that is 1s. d/t=s ie c



So what's the problem?





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