Barbara Romanowicz on Seeing Deep into the Earth

Barbara Romanowicz uses the seismic waves triggered by earthquakes to probe the interior of the Earth.  She has forged new techniques for analyzing these waves to give us a much sharper view of the deep structure of the Earth.  She is a Professor of the Graduate School at the University of California at Berkeley, and Chair of Physics of the Earth’s Interior at the Collège de France in Paris.