The ball on top of a flagpole is called a 'truck'.
24
Car airbags kill 1 person for every 22 lives that they save.
80
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The electric chair was invented by a dentist!
122
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
88