Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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A cubic yard of air weighs about 2 pounds at sea level.
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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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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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Scientists are now able to grow 'beating' heart tissue in a lab!
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Hot water can freeze faster than cold water.
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The bark of an older redwood tree is fireproof.
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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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