Scientists are now able to grow 'beating' heart tissue in a lab!
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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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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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Balsa wood is classified as a hard wood!
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Neanderthal man had a brain capacity 100cc larger than modern man's.
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Sound travels about 4 times faster in water than in air.
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