The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
In the early 1960's, Porsche commercially manufactured farm tractors.
24
