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
Hot water can freeze faster than cold water.
181
German chemists made a replica of a trophy the size of one molecule.
68
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Pumice is the only rock that floats on water.
14
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
