How trains make turns without differentials

You know how the car differential works, right? Well, have you ever wondered how trains take corners, with their wheels connected by solid steel axles? In this clip from the BBC series Fun to Imagine, America’s coolest nuclear physicist and frigideira percussionist Richard Feynman leaves the world of quantum… » 7/12/11 1:30pm 7/12/11 1:30pm

Oversteer My Bagel: Look Out World, Sam Is On A T-Shirt

A week ago, someone emailed us a design for what we are officially calling the World's Greatest Most Bestest Center Differential T-Shirt Ever What Ever Ruled the Land. Turns out people actually enjoy candy-fueled, caffeine-powered babbling. Who knew? » 3/30/10 1:00pm 3/30/10 1:00pm