1936 - Inge Lehmann
Discovered Earth's Core
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Women Inventors & Innovators – Map »Women Inventors & Innovators – Map
PEOPLE »PEOPLE
1936 - Inge Lehmann
DISCOVERING SECRETS OF THE UNIVERSE »DISCOVERING SECRETS OF THE UNIVERSE
1930's to 1950's - World War II Era  »1930's to 1950's - World War II Era
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