A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
A cubic yard of air weighs about 2 pounds at sea level.
31
Cold water weighs more than hot water.
93
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
For every gallon of sea water, you get more than a quarter pound of salt.
45
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Brass doorknobs automatically disinfect themselves in about 8 hours.
18