You’ve seen what happens when you mix Mentos with Diet Coke, right? Explosive. The two men who made that bit of science famous, Fritz Grobe and Stephen Volz, known collectively as EepyBird, join us to talk about their book, How to Build A Hovercraft. They show how to create very cool experiments using ordinary household objects. You may have heard them on NPR’s Science Friday, and they’re with us today.