Castor oil is used as a lubricant in jet planes.
-5
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Kleenex tissues were originally used as filters in gas masks.
46
The cigarette lighter was invented before the match.
210
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
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
The electric chair was invented by a dentist!
122