In zero gravity, a candle's flame is round and blue.
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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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All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
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A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
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