Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
If the chemical sodium is dropped into water it will immediately and violently explode.
67
In zero gravity, a candle's flame is round and blue.
16
Sound at the right vibration can bore holes through a solid object.
134
Scientists are now able to grow 'beating' heart tissue in a lab!
162
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
A cubic yard of air weighs about 2 pounds at sea level.
31
Neanderthal man had a brain capacity 100cc larger than modern man's.
50