Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
One 75-watt bulb gives more light than three 25-watt bulbs.
57
A cubic yard of air weighs about 2 pounds at sea level.
31
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7