An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
A toaster uses almost half as much energy as a full-sized oven.
33
Car airbags kill 1 person for every 22 lives that they save.
80
There are only 14 blimps in the world.
69
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7