Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
For every gallon of sea water, you get more than a quarter pound of salt.
45
Each day, up to 150 species of life become extinct.
-23
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
Scientists aren't sure what color dinosaurs were.
312
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Nearly 50% of the world's scientists are assigned to military projects.
71