An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The cigarette lighter was invented before the match.
210
Castor oil is used as a lubricant in jet planes.
-5
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2
The electric chair was invented by a dentist!
122
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
Kleenex tissues were originally used as filters in gas masks.
46