A single speck of dust is half way in size between a subatomic particle and the Earth.
15
No matter how cold it gets, gasoline will not freeze.
107
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
One third of the electricity produced on earth is used to power electric light bulbs!
75
Pumice is the only rock that floats on water.
14
4.5 pounds of sunlight strike the Earth each day.
27