AWhat changed
Observed rotation-dependent, sign-reversing interference fringe displacement.
Scientific scope
The record is the first 1913 Comptes rendus report and its observation. It does not endorse Sagnac's ether interpretation, absorb his second 1913 paper, or include later ring-laser, fibre-optic and navigation gyroscopes.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the first 1913 Comptes rendus report and its observation. It does not endorse Sagnac's ether interpretation, absorb his second 1913 paper, or include later ring-laser, fibre-optic and navigation gyroscopes.
Contributors
- Georges Sagnac · 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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