Indoor pollution is 10 times more toxic than outdoor pollution.
62
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Balsa wood is classified as a hard wood!
41
Billions of neutrinos pass unnoticed through your body every second.
6