The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Castor oil is used as a lubricant in jet planes.
-5
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
Car airbags kill 1 person for every 22 lives that they save.
80
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Attics were invented in Attica.
43
Sony researchers have developed a refrigerator that only opens when you smile.
9