Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
Any modern jet is capable of breaking the sound barrier.
34
The American Automobile Association was founded for the sole purpose of warning motorists of police speed traps!
36
The electric chair was invented by a dentist!
122
Kleenex tissues were originally used as filters in gas masks.
46
There are only 14 blimps in the world.
69
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41