Kleenex tissues were originally used as filters in gas masks.
46
Car airbags kill 1 person for every 22 lives that they save.
80
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The cigarette lighter was invented before the match.
210
About 39,000 gallons of water are used to produce the average car!
14
Any modern jet is capable of breaking the sound barrier.
34
More than a billion transistors are manufactured every second.
-25
A small airplane can fly backwards.
75