Pumice is the only rock that floats on water.
14
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
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 'jiffy' is an actual unit of time for 1/100th of a second!
66
One ragweed plant can release as many as one billion grains of pollen!
51
One cubic foot of gold weighs more than 1,200 pounds!
78
Sound at the right vibration can bore holes through a solid object.
134
Cold water weighs more than hot water.
93