An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Car airbags kill 1 person for every 22 lives that they save.
80
Originally, Nintendo was a playing card manufacturer.
70
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
There are only 14 blimps in the world.
69
Sony researchers have developed a refrigerator that only opens when you smile.
9
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144