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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
According to studies, men change their minds two to three times more often than women.
72
The bark of an older redwood tree is fireproof.
65
For every gallon of sea water, you get more than a quarter pound of salt.
45
Research indicates that plants grow healthier when they are stroked.
173
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
A cubic yard of air weighs about 2 pounds at sea level.
31