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Fizeau: light propagation in moving water

Contribution grade

Relativity and gravitation · EMPIRICAL

Reference score215,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Interferometrically measured light-propagation changes in flowing water consistent with partial drag.

Scientific scope

The record is Fizeau's sole-author 1851 moving-water experiment. It does not constitute special relativity, settle every ether model or absorb later repetitions and relativistic interpretations.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is Fizeau's sole-author 1851 moving-water experiment. It does not constitute special relativity, settle every ether model or absorb later repetitions and relativistic interpretations.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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