The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Kleenex tissues were originally used as filters in gas masks.
46
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
The life boat was patented in 1845!
29
The cigarette lighter was invented before the match.
210
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184