First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
About 39,000 gallons of water are used to produce the average car!
14
A small airplane can fly backwards.
75
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Any modern jet is capable of breaking the sound barrier.
34