Kleenex tissues were originally used as filters in gas masks.
46
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
The Queen Mary - the grandest vessel of her day - had many of her vital components made by car manufacturer Skoda!
23
Castor oil is used as a lubricant in jet planes.
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An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The IRS processes more than 2 billion pieces of paper each year.
28