I Is it feasible to measure one way speed of light this way?

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The discussion centers on a theoretical experiment proposed to measure the one-way speed of light, which has not been empirically verified since 1905. The experiment, dubbed "The Weight Race Experiment/Method," involves using optical fibers, lasers, and a system of weights to determine if light travels at the same speed in both directions. Critics argue that the experiment's design cannot ensure simultaneous events at different locations, which is crucial for accurate measurement. Additionally, the feasibility of detecting minute differences in light speed is questioned, highlighting the challenges of experimental error and synchronization conventions. Overall, the conversation emphasizes the complexity and theoretical nature of measuring the one-way speed of light.
  • #51
kinsler33 said:
Didn't someone calculate a reasonable value for c by astronomical observation?
Ole Rømer studied the moons of Jupiter. He used them as a distant clock and ascribed their apparent tick rate variation solely to changing distance, from which he could deduce a speed of light. In a relativistic analysis of his work he was assuming slow clock transport, which is equivalent to assuming an isotropic one-way speed of light. So this is not a true one-way speed measurement either.
 
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  • #52
Ibix said:
No - this is a different topic. See post #40 and responses to that.
kinsler33 said:
c = (D1-D2)/(T1-T2)
No. See post #41 and responses to that.
 
  • #53
Well, I sees. . .

Ibix said:
See post #40 and responses to that.
Vanadium 50 said:
See post #41 and responses to that.
But, now look, see. . .
If you linked to your post numbers, it'd save a bunch of scrolling. . . . 😒

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