Aluminum used to be more valuable than gold!
84
A cesium atom in an atomic clock beats over nine billion times a second.
43
Pumice is the only rock that floats on water.
14
One cubic foot of gold weighs more than 1,200 pounds!
78
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The storage capacity of human brain exceeds 4 Terrabytes.
140
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9