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
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
One barrel of petroleum holds 42 gallons.
20
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
A cubic yard of air weighs about 2 pounds at sea level.
31
Most dust particles in your house come from dead skin.
48