Whale oil was used in automobile transmissions as late as 1973.
56
Attics were invented in Attica.
43
Originally, BMW was an airplane engine manufacturer.
69
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
The ball on top of a flagpole is called a 'truck'.
24
Kleenex tissues were originally used as filters in gas masks.
46
Any modern jet is capable of breaking the sound barrier.
34