Volcanoes, earthquakes, and tornadoes all can cause enormous damage, and predicting where and when they will strike is of great importance. Volcanologist Dr. Marie Edmonds has devised sensors that monitor the underground activity of magma to better p...
America is a vast country--three thousand miles from end to end. But it's not the land that makes America so special--it's the people. Filmmaker Louis Schwartzberg packed-up his camera and hit the road, with a goal of capturing both the unparalleled ...