Most dust particles in your house come from dead skin.
48
A ball of glass will bounce higher than a ball made of rubber.
73
Cold water weighs more than hot water.
93
Pumice is the only rock that floats on water.
14
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
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
Sound travels fifteen times faster through steel than through air.
134