Coins usually survive in circulation for about 30 years.
66
When glass breaks, the cracks move faster than 3,000 miles per hour.
47
The chills you sometimes feel when listening to music is called "musical frisson."
18
Teddy bears were named after U.S. President Theodore 'Teddy' Roosevelt.
23
Tsunamis ( tidal waves ) travel as fast as jet planes.
97
Japanese engineers were asked to redesign the front end of the Bullet Train because it carried enough speed to create a sonic boom whenever it exited a tunnel. Residents could feel the blast from miles away.
11
Ninety-nine percent of pumpkins sold in the United States are for the sole purpose of decoration.
55
During his or her lifetime, the average human will grow 590 miles of hair.
69