The first alarm clock could only ring at 4 a.m.
120
The electric chair was invented by a dentist!
122
Castor oil is used as a lubricant in jet planes.
-5
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Sony researchers have developed a refrigerator that only opens when you smile.
9
The IRS processes more than 2 billion pieces of paper each year.
28
