The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
The life boat was patented in 1845!
29
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
Originally, BMW was an airplane engine manufacturer.
69
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
A small airplane can fly backwards.
75