Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The earth is approx. 6,588,000,000,000,000,000 tons.
175
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
According to studies, men change their minds two to three times more often than women.
72
A cesium atom in an atomic clock beats over nine billion times a second.
43
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One third of the electricity produced on earth is used to power electric light bulbs!
75
Out of all the senses, smell is most closely linked to memory.
146