Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
One ragweed plant can release as many as one billion grains of pollen!
51
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Diamonds can be shattered with a hammer.
-104
No matter how cold it gets, gasoline will not freeze.
107
Your brain is 80% water.
525