Story perspectives

Rediscovered: Inge Lehmann's Groundbreaking Earth Core Theory

12/20/2025

Summary

Story summary

In 1936, Inge Lehmann, a Danish seismologist, proposed that the Earth has a dense inner core, overturning the belief in a molten interior.
Her article titled "P’" published in a French journal described findings from seismic readings of the 1929 New Zealand earthquake.
Lehmann's meticulous research included calculations and graphs supporting her conclusion.
The Times published the article as part of its "Overlooked" series, highlighting contributions that went unrecognized.

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Story summary

In 1936, Inge Lehmann, a Danish seismologist, proposed that the Earth has a dense inner core, overturning the belief in a molten interior.
Her article titled "P’" published in a French journal described findings from seismic readings of the 1929 New Zealand earthquake.
Lehmann's meticulous research included calculations and graphs supporting her conclusion.
The Times published the article as part of its "Overlooked" series, highlighting contributions that went unrecognized.