Garden of Thought E. 274 Shake, Rattle, and Blow

This is a seismic episode with eruptive qualities. Because we're joined by Dr. Jeffrey Zurek, a Geophysicist and Vulcanist. So, we get sciency in the Garden way. Is the Earth's core made from a planetary collision? Are all atolls volcanoes? Is the caldera of Yellowstone an imminent threat? What's the difference between a caldera and volcano? Is The Great Salt Lake a big liar? Is an irradiated Godzilla Armidillo a risk? When the polarity shifts, does clockwise become counterclockwise? Where do continents begin and end? These and many other questions are addressed and, yes, we get real answers to these and some realer life stuff too.