There are only 14 blimps in the world.
69
The first alarm clock could only ring at 4 a.m.
120
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Mico headphones read your brainwaves and select music based on your state of mind.
7
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Sony researchers have developed a refrigerator that only opens when you smile.
9
The electric chair was invented by a dentist!
122
A small airplane can fly backwards.
75