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
Sony researchers have developed a refrigerator that only opens when you smile.
9
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Any modern jet is capable of breaking the sound barrier.
34
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5