Source: Relativistic Baseball
Stashed in: Baseball, Science!, xkcd!
Awesome! The xkcd guy doing physics lessons.
I was noticing that he has an increasing amount of science things in the xkcd store...
And This Is Why Baking Powder Can't Be Used As Baking Soda
Top newfound species of 2012
Neil deGrasse Tyson and the Art of the Soundbite
How the Tuxedo Cat Got Its Piebald Coat (and Other Furry Tails)