The first alarm clock could only ring at 4 a.m.
120
Mico headphones read your brainwaves and select music based on your state of mind.
7
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
More than a billion transistors are manufactured every second.
-25
The American Automobile Association was founded for the sole purpose of warning motorists of police speed traps!
36
Originally, Nintendo was a playing card manufacturer.
70
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
