Richard Dixon Oldham FRS (31 July 1858 – 15 July 1936) was a British geologist who made the first clear identification of the separate arrivals of P-waves, S-waves and surface waves on seismograms and the first clear evidence that the Earth has a central core.
Read more about Richard Dixon Oldham: Life, Publications
Famous quotes containing the word richard:
“Resolve to win—period—because that is the American system. You take either side—it doesn’t even matter which one—and you go on the attack.”
—Donald Freed, U.S. screenwriter, and Arnold M. Stone. Robert Altman. Richard Nixon (Philip Baker Hall)