The first alarm clock could only ring at 4 a.m.
120
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The American Automobile Association was founded for the sole purpose of warning motorists of police speed traps!
36
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
The life boat was patented in 1845!
29
In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
88
The electric chair was invented by a dentist!
122