Aluminum used to be more valuable than gold!
84
Research indicates that plants grow healthier when they are stroked.
173
A cubic yard of air weighs about 2 pounds at sea level.
31
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The earth is approx. 6,588,000,000,000,000,000 tons.
175