About Inge Lehmann
Inge Lehmann was a Danish seismologist and geophysicist who is known for her discovery in 1936 of the solid inner core that exists within the molten outer core of the Earth. She also discovered the seismic discontinuity in the speed of seismic waves at depths between 190 and 250 km, which is named the Lehmann discontinuity after her. Lehmann is considered to be a pioneer among women and scientists in seismology research. Inge Lehmann (13 May 1888 – 21 February 1993) was a Danish seismologist and geophysicist who is known for her discovery in 1936 of the solid inner core that exists within the molten outer core of the Earth. Inge Lehmann's paternal grandfather laid out the first Danish telegraph line (1854) and her great-grandfather was Governor of the National Bank. At age 18, Lehmann achieved a first rank mark in the entrance exam for Copenhagen University.
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