There are only 14 blimps in the world.
69
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
The ball on top of a flagpole is called a 'truck'.
24
In the early 1960's, Porsche commercially manufactured farm tractors.
24
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27