Nylon is made from coal and petroleum.
42
Most dust particles in your house come from dead skin.
48
In zero gravity, a candle's flame is round and blue.
16
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The sun is 330,330 times larger than the earth.
75
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3