An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The electric chair was invented by a dentist!
122
There are only 14 blimps in the world.
69
The first alarm clock could only ring at 4 a.m.
120
Sony researchers have developed a refrigerator that only opens when you smile.
9
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33