Pumice is the only rock that floats on water.
14
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
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
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
A cesium atom in an atomic clock beats over nine billion times a second.
43
No matter how cold it gets, gasoline will not freeze.
107
Scientists aren't sure what color dinosaurs were.
312
In zero gravity, a candle's flame is round and blue.
16