Inge Lehmann - Wikivids
Channel: wikivids
Date: 2017-09-29

Wikivids presents a brief video about Inge Lehmann! Inge Lehmann (13 May 1888 to 21 February 1993) was a Danish seismologist and geophysicist who discovered in 1936 that the Earth has a solid inner core inside a molten outer core.