The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
88
The ball on top of a flagpole is called a 'truck'.
24
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
A toaster uses almost half as much energy as a full-sized oven.
33