The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7
The United States produces enough plastic film annually to cover the entire state of Texas.
13
Sony researchers have developed a refrigerator that only opens when you smile.
9
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2