Randall Munroe Explains How to Power Your House

Randall Munroe went from a job as a NASA programmer and roboticist to creating the webcomic xkcd. He has a new book called How To: Absurd Scientific Advice for Common Real-World Problems. This video shows you the kind of thing the book contains, as he weighs the pros and cons of various ways of providing sustainable power to your home. (via Digg)