Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
A cesium atom in an atomic clock beats over nine billion times a second.
43
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Diamonds can be shattered with a hammer.
-104
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Hot water can freeze faster than cold water.
181
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15