Whale oil was used in automobile transmissions as late as 1973.
56
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
Kleenex tissues were originally used as filters in gas masks.
46
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
The ball on top of a flagpole is called a 'truck'.
24
The first alarm clock could only ring at 4 a.m.
120