The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
Originally, Nintendo was a playing card manufacturer.
70
Future biotechnology could be used to trick a prisoner's mind into thinking they have served a 1,000 year sentence in only eight hours, a group of scientists have claimed.
0
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The first alarm clock could only ring at 4 a.m.
120
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7