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
Nylon is made from coal and petroleum.
42
Pumice is the only rock that floats on water.
14
Hot water can freeze faster than cold water.
181
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Research indicates that plants grow healthier when they are stroked.
173