If you've ever wondered how Einstein arrived at his famous calculation, YouTuber "minutephysics" has you covered. In about two minutes, here's how he did it:
Now if we could just find cats that emit light energy. Oh, wait, we already have:
Keith Shaw rounds up the best in geek video in his ITworld.tv blog. Follow Keith on Twitter at @shawkeith. For the latest IT news, analysis and how-tos, follow ITworld on Twitter, Facebook, and Google+.