Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
The average IQ is 100, while 140 is the beginning of genius IQ.
140
Coins usually survive in circulation for about 30 years.
66
If you dropped an aerodynamic object (such as a bullet) from the Empire State Building, you could kill someone.
132
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
Approximately 60% of the water used by households during the summer is used for watering flowers and lawns.
79
A man earned 4 million airline miles for free without breaking any laws by using his credit card to purchase free-delivery $1 coins from the U.S. mint.
11
Oak trees can live 200 or more years.
61