A cubic yard of air weighs about 2 pounds at sea level.
31
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Pumice is the only rock that floats on water.
14
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
16
For every gallon of sea water, you get more than a quarter pound of salt.
45