Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Most dust particles in your house come from dead skin.
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Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
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One 75-watt bulb gives more light than three 25-watt bulbs.
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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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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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