Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The storage capacity of human brain exceeds 4 Terrabytes.
140
For every gallon of sea water, you get more than a quarter pound of salt.
45
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Pumice is the only rock that floats on water.
14
A single speck of dust is half way in size between a subatomic particle and the Earth.
15