International Rubik's Cube Competition

If you're of a certain age, you might remember the original Rubik's Cube craze back in the 1980s, when Erno Rubik's fascinating, frustrating little mathematical toy swept the nation. Well, dust off your unsolved Rubik's Cube and give it to your kids, because 30 years later, at the 2009 International Rubik's Cube Competition at the Exploratorium, competitors are solving it with their eyes closed and with one hand tied behind their backs.

Read more on the SF Chronicle website.