An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
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
Any modern jet is capable of breaking the sound barrier.
34
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
There are only 14 blimps in the world.
69
The average car produces a pound of pollution every 25 miles!
18