Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
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
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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