Jumbo jets use 4,000 gallons of fuel to take off.
19
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
Whale oil was used in automobile transmissions as late as 1973.
56
The first alarm clock could only ring at 4 a.m.
120
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47