Castor oil is used as a lubricant in jet planes.
-5
More than a billion transistors are manufactured every second.
-25
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
The cigarette lighter was invented before the match.
210
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
Energy is being wasted if a toaster is left plugged in after use.
21
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
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12