The life boat was patented in 1845!
29
Mico headphones read your brainwaves and select music based on your state of mind.
7
The first alarm clock could only ring at 4 a.m.
120
Any modern jet is capable of breaking the sound barrier.
34
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
