What is the medium that affects the speed of light in the Fizeau Experiment?

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SUMMARY

The Fizeau Experiment demonstrated that the speed of light varies in moving mediums, particularly in moving water. The experiment supports the concept of a "drag coefficient" proposed by Fresnel, which describes how a moving medium affects light propagation. Special Relativity (SR) negates the existence of ether but aligns with the findings of the Fizeau Experiment, indicating that light speed in a moving medium differs from that in a stationary medium. This relationship is consistent with the Fresnel drag coefficient and experimental resolutions.

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  • Understanding of Special Relativity (SR)
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Nice link - it'll take me weeks to go through it all, but I really need to...
 
The Fizeau Experiment
Fizeau measured the speed of light in moving mediums, most notably moving water. Fresnel proposed a "drag coefficient" which putatively described how strongly a moving material medium "dragged" the ether. SR predicts no ether but does predict that the speed of light in a moving medium differs from the speed in the medium at rest, by an amount consistent (to within experimental resolutions) with these experiments and with the Fresnel drag coefficient.
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according to this, light speed is different in a moving medium,
and i think its is relative to the theory of "frame dragging", if
that is correct what is the medium that is in motion?
 

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