Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
There are more than 10 million bricks in the Empire State Building!
75
If you get water flowing fast enough, it can cut metal.
354
A real estate agent's rule of thumb: To estimate what a house will sell for, ask the owner what its worth and subtract 10%.
24
80% of millionaires drive used cars.
68
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
479
It's impossible to sink in the Dead Sea without equipment!
72
In a year approximately 900 million trees are cut down to make the raw materials needed for American pulp mills and paper.
-16