An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
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
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
The first alarm clock could only ring at 4 a.m.
120
A small airplane can fly backwards.
75
Mico headphones read your brainwaves and select music based on your state of mind.
7
There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12