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
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
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
Diamonds can be shattered with a hammer.
-104
One cubic foot of gold weighs more than 1,200 pounds!
78
Hot water can freeze faster than cold water.
181