Iron weighs more after it rusts.
68
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Balsa wood is classified as a hard wood!
41
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
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108