Watch the world's most complex Rube Goldberg machine in action

Yesterday, Purdue University's Society of Professional Engineers broke a world record, creating the world's largest Rube Goldberg device. "Largest" here means containing the most steps, and Purdue's machine goes through 300 steps to inflate and then pop a balloon. The previous record-holder? Purdue University, which… » 4/08/12 2:30pm 4/08/12 2:30pm