Play-Doh was introduced in 1956 by Hasbro Inc. The only color availabe was an off white, and it came in one size which a one and a half pound can.

Thomas Edison designed a helicopter that would work with gunpowder. It ended up blowing up and also blew up his factory.

When you hear a bullwhip snap, it's because the tip is traveling faster than the speed of sound.

AMAZING FACTS