The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
Attics were invented in Attica.
43
A small airplane can fly backwards.
75
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
More than a billion transistors are manufactured every second.
-25
The electric chair was invented by a dentist!
122