The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Iron weighs more after it rusts.
68
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The sun is 330,330 times larger than the earth.
75
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Indoor pollution is 10 times more toxic than outdoor pollution.
62
A single speck of dust is half way in size between a subatomic particle and the Earth.
15