AWhat changed
Measured the phase displacement in a large enclosed optical path associated with Earth's rotation.
Scientific scope
The record is the exact Part II experimental paper by Michelson and Gale. Fred Pearson is retained as an explicitly credited assistant, not promoted into the byline; Part I theory, Sagnac's earlier experiment and later gyroscopes remain separate.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact Part II experimental paper by Michelson and Gale. Fred Pearson is retained as an explicitly credited assistant, not promoted into the byline; Part I theory, Sagnac's earlier experiment and later gyroscopes remain separate.
Contributors
- Albert A. Michelson · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
- Henry G. Gale · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
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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