Mount Everest may be the tallest mountain on Earth, but that's only if you're measuring from sea level. Thanks to the curvature of the planet, Mount Chimborazo in Ecuador is the highest if you're measuring from the center of the Earth. In fact, by this system, Everest comes in fifth. (Via Chris Pasco-Pranger)
Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out, a book about electricity, infrastructure, and the future of energy. You can find Maggie on Twitter and Facebook.