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
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Most dust particles in your house are made from dead skin!
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Balsa wood is classified as a hard wood!
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