The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
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
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Your brain is 80% water.
525
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Iron weighs more after it rusts.
68
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
A cesium atom in an atomic clock beats over nine billion times a second.
43