Inclined Plane: A simple machine consisting of a flat surface whose topmost point is higher than its bottommost point, this is yet another example of mankind's propensity for "inventing" things they just found lying around.
Telephone:This groundbreaking communication device allowed people a more dramatic way to end conversations with subordinates or lovers, and also played a key role in Martin Scorcese's film The Departed.
Printing Press:The mass production of printed matter was an instant hit with readers everywhere, who at the time numbered nearly 1,000 and were spread out over some 57.4 million square miles.
Easy Cheese: A pioneering aerosol-powered food- delivery system that made it possible for people to discharge high-velocity streams of cheese directly into their mouths, usually from a prone or inverted position.
God: This multipurpose tool has allowed billions to soothe their mortal fears while easily excusing a wide variety of unconscionable actions such as war and homophobia.
Gatling Gun: Capable of firing 200 rounds a minute, this powerful weapon was a vast improvement over its less lethal predecessor, the Gatling Baton.