Here's the intellectual upside of the Tiger Woods kerfuffle: A copy of John Gribbin's Get a Grip on Physics was spotted in Woods' wrecked Cadillac. (Photo here.) And, ever since, the book has been in high demand. The Wall Street Journal reports that the book’s Amazon sales rank has jumped from 396,224 to 2,268. But, from what I can tell, the book actually seems to be out of print, and you'll need to pay a minimum of $42 to buy a used copy online. (Here’s an instance where Google’s book digitization initiative would benefit an author.) If you're looking to bone up on your physics, let me save you a few bucks. With Learning Physics Through Free Online Courses, we have pulled together free courses from MIT, Stanford, UC Berkeley, and Yale, plus a series of famous lectures by Richard Feynman that Bill Gates has put online. These and many other physics courses can also be found in our larger collection of Free Courses Online and on our Free iPhone App. Enjoy and remember to wear your seatbelt.