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
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
For every gallon of sea water, you get more than a quarter pound of salt.
45
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The bark of an older redwood tree is fireproof.
65
The only letter not appearing on the Periodic Table is the letter "J".
180
Pumice is the only rock that floats on water.
14