Today there on almost all homepages of Google an animated doodle which is dominated by Inge Lehmann, a Danish seismologe known for her pioneering research on the internal structure of the Earth. Inge Lehmann was born on May 13, 1888 in Østerbro, part of Copenhagen, one of the so-called bridge districts.
Inge Lehmann was the daughter of psychologist Alfred Lehmann. She studied mathematics from 1907 to 1920 at the University of Copenhagen and the University of Cambridge. In 1925 she became the assistant to the geodesist Niels Erik Nørlund. Nørlund was currently engaged in setting up seismic stations in Denmark and Greenland. As Inge Lehmann became involved with the project, they began to study the seismology, which they visited include Gutenberg in Darmstadt.
So she graduated in 1928 into the seismology and she then took charge of the seismological measurements of the Royal Danish Geodetic Institute. Although she retired in 1953 she was engaged in research among others with Maurice Ewing and Frank Press. Inge Lehmann is one of the main seismologists ever.
Inge Lehmann is best known for its discovery of two discontinuities in the Earth. In 1936 Inge Lehmann proved on the basis of its seismological measurements of S-waves, that the nature core consists of a liquid outer core and a solid inner core. During her later work, she discovered another discontinuity at 190 to 250 km depth in the aardmantel that the Lehmanndiscontinuïteit called.
It is a logo which unexpectedly received a sad edge as Google to give, due the earthquake that hit Nepal yesterday. News of a second major earthquake within a short time in Nepal today biedt a sad context to this post, and reminds us of The Importance of science in predicting earthquakes So THAT more lives can be saved.
No comments:
Post a Comment