One third of the electricity produced on earth is used to power electric light bulbs!
75
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
Iron weighs more after it rusts.
16
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Pumice is the only rock that floats on water.
14
Hot water can freeze faster than cold water.
181
4.5 pounds of sunlight strike the Earth each day.
27