In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
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One ragweed plant can release as many as one billion grains of pollen!
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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