The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
Castor oil is used as a lubricant in jet planes.
-5
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