There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
2