AWhat changed
The curated original proposal adds a higher-velocity inner region as a candidate explanation and leaves explicit conditions and uncertainty for later investigators.
Scientific scope
The curated original proposal adds a higher-velocity inner region as a candidate explanation and leaves explicit conditions and uncertainty for later investigators. This version curates the explanatory hypothesis in selected 1936 passages reproduced in a 2001 scholarly edition, not the full original paper/data tables or modern inner-core theory. The original says the data do not prove the hypothesis; abrupt and sufficiently strong gradual velocity changes are discussed. The solid phase and precise modern dimensions are not certified by this target. Redrawn later diagrams are not original figures.
Evidence
Source-linked, scoped account of the original work. The published scope states the scientific assumptions and remaining verification limits. WRS has not independently certified the full proof, experimental result or system benchmark.
Contributors
- Inge Lehmann · SCIENCE: Original source-listed scientific author of this scoped work; byline does not determine effort fractions.
- Martina Kölbl-Ebert, Inge Lehmann's paper P′(1936), Episodes 24(4),262–267(2001): selected original passages with marked commentary
- Linda Hall Library, Inge Lehmann: original 1936 P′ article in the library collection
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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