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
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
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
It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
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