The earth is approx. 6,588,000,000,000,000,000 tons.
175
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
Nearly 50% of the world's scientists are assigned to military projects.
71
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
No matter how cold it gets, gasoline will not freeze.
107