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Lehmann in 1932. Image courtesy The Royal Library, National Libary of Denmark and University of Copenhagen University Library, under a Creative Commons License. Even Neuhaus (6.2.1863-20.4.1946) - http://www5.kb.dk/images/billed/2010/okt/billeder/object11164/da/ The photograph is sepia-toned and features Lehmann with a composed expression, wearing a modest dark jacket over a white blouse. Her hair is neatly pulled back, and she has a serious, determined gaze. The signature "Marthæus 1932" is visible in the lower right corner.

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Lehmann in 1932. Image courtesy The Royal Library, National Libary of Denmark and University of Copenhagen University Library, under a Creative Commons License. Even Neuhaus (6.2.1863-20.4.1946) - http://www5.kb.dk/images/billed/2010/okt/billeder/object11164/da/ The photograph is sepia-toned and features Lehmann with a composed expression, wearing a modest dark jacket over a white blouse. Her hair is neatly pulled back, and she has a serious, determined gaze. The signature "Marthæus 1932" is visible in the lower right corner.
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Project Gutenberg (gutenberg_org@mastodon.social)'s status on Friday, 21-Feb-2025 20:22:35 JST Project Gutenberg

Danish seismologist and geophysicist Inge Lehmann died #OTD in 1993.
She is best known for her discovery in 1936 of the solid inner core that exists within the molten outer core of the Earth. The seismic discontinuity in the speed of seismic waves at depths between 190 and 250 km is named the Lehmann discontinuity after her. Lehmann is considered to be a pioneer among women and scientists in seismology research.
https://en.wikipedia.org/wiki/Inge_Lehmann
#seismology #geophysics #womeninStem

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