Iron weighs more after it rusts.
68
Pure water (H2O) does not conduct electricity on its own.
46
4.5 pounds of sunlight strike the Earth each day.
27
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
In zero gravity, a candle's flame is round and blue.
16
Each day, up to 150 species of life become extinct.
-23
The average temperature at 40,000 feet above sea level is -60 F.
56
Most dust particles in your house come from dead skin.
48