Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The smell of freshly cut grass is actually a plant distress call.
31
Pumice is the only rock that floats on water.
14
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
Pure water (H2O) does not conduct electricity on its own.
46
The sun is 330,330 times larger than the earth.
75