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
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Pumice is the only rock that floats on water.
14
Nylon is made from coal and petroleum.
42
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The sun is 330,330 times larger than the earth.
75
German chemists made a replica of a trophy the size of one molecule.
68