An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
The electric chair was invented by a dentist!
122
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
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 life boat was patented in 1845!
29
It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
