Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Pure water (H2O) does not conduct electricity on its own.
46
The only letter not appearing on the Periodic Table is the letter "J".
180
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Research indicates that plants grow healthier when they are stroked.
173
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