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
There are only 14 blimps in the world.
69
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
In the early 1960's, Porsche commercially manufactured farm tractors.
24