An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The Queen Mary - the grandest vessel of her day - had many of her vital components made by car manufacturer Skoda!
23
The electric chair was invented by a dentist!
122
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 normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
The ball on top of a flagpole is called a 'truck'.
24
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27