Today’s Google Doodle honors Inge Lehmann, the female seismologist who discovered the earth’s inner and outer cores. Designed by Doodler Kevin Laughlin, the animated logo uses a glowing orb to represent Lehmann’s discovery.
Born in Østerbro, Denmark, Lehmann was appointed the head of the department of seismology at Denmark’s Geodtical Institute in 1928.
After intensive research of earthquakes and seismic waves, Lehmann authored a paper in 1936 proposing that the Earth’s center consisted of both a solid inner core surrounded by a liquid outer core and separated by what is now referred to as the “Lehmann Discontinuity.”
