Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The sun is 330,330 times larger than the earth.
75