An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Car airbags kill 1 person for every 22 lives that they save.
80
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
The electric chair was invented by a dentist!
122
The IRS processes more than 2 billion pieces of paper each year.
28
All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
2