The electric chair was invented by a dentist!
122
The first alarm clock could only ring at 4 a.m.
120
More than a billion transistors are manufactured every second.
-25
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
Energy is being wasted if a toaster is left plugged in after use.
21
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33