Could the web be any more useful than this? (Okay, it’s mostly about board breaking, but still.)

Meet Chris, kung fu expert and general, all-round crazy person. Sometimes he breaks concrete blocks just for the hell of it.

Meet Michelle. She’s a physicist working at the Institute of Physics, but recently she’s been learning kung fu. In particular she wants to learn how to break wood with her bare hands, and find out the physics behind the feat.

(Via Cosmic Variance.)