YouTuber "minutephysics" continues his series of Einstein videos, this week talking about his 1905 paper on The Special Theory of Relativity, in which the discussion of whether time was relative or not (hint, it was). Includes a cameo appearance by Einstein's cat.
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+.