Erico Guizzo says: "Japanese roboticist Masaaki Kumagai has built wheeled robots, crawling robots, and legged robots. Now he's built a robot that balances and rides on a bowling ball. You say why? Kumagai says why not?"
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.