The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12
The United States produces enough plastic film annually to cover the entire state of Texas.
13
