Castor oil is used as a lubricant in jet planes.
-5
The first alarm clock could only ring at 4 a.m.
120
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
Kleenex tissues were originally used as filters in gas masks.
46
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5