There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
There are only 14 blimps in the world.
69
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
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
Whale oil was used in automobile transmissions as late as 1973.
56
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5