An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
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
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
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 oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Originally, Nintendo was a playing card manufacturer.
70
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2