(Not literally on train wheels . . . talking about trains, and wheels, and curves.) I love Richard Feynman so much. We are so unlucky to have lost him before we could have him out to a Skeptics in the Pub, but astoundingly lucky that he was captured on film, which would eventually end up all over YouTube. For instance, this clip of him discussing how a train stays on its tracks:
Rebecca leads a team of skeptical female activists at Skepchick.org. She travels around the world delivering entertaining talks on science, atheism, feminism, and skepticism. There is currently an asteroid orbiting the sun with her name on it. You can follow her every fascinating move on Twitter or on Google+.