Coins usually survive in circulation for about 30 years.
66
The best recorded distance for projectile vomiting is 27 feet.
71
In 1976, an underachieving Princeton junior undergraduate wrote a term paper detailing how to make a nuclear bomb. He got an "A", but never got his paper back because it was seized by the FBI.
16
Paper money is not made from wood pulp but from cotton. This means that it will not disintegrate as fast if it is put in the laundry.
37
There are more telephones than people in Washington, D.C.
121
The chills you sometimes feel when listening to music is called "musical frisson."
18
People who drink coffee are less likely to commit suicide than people who don't.
268
The yin-yang pattern's earliest use is in Rome - not China!
125