The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
2
A small airplane can fly backwards.
75
The cigarette lighter was invented before the match.
210
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
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