For every gallon of sea water, you get more than a quarter pound of salt.
45
Iron weighs more after it rusts.
16
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The average temperature at 40,000 feet above sea level is -60 F.
56
German chemists made a replica of a trophy the size of one molecule.
68
Most dust particles in your house are made from dead skin!
67