A cubic yard of air weighs about 2 pounds at sea level.
31
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Iron weighs more after it rusts.
68
One third of the electricity produced on earth is used to power electric light bulbs!
75
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5