Did you know that America's best educational videos actually came from automakers? Like this Chevrolet film from 1937 that provides the best explanation ever for the basic principles behind a car's differential.
Designer Nicholas Heckaman of The Ring Tree meticulously handcrafts detailed rings out of US coins. The Gainesville, Florida-based designer first discovered his skill when he was looking for the perfect ring to propose to his girlfriend with. He managed t