Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
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Hot water can freeze faster than cold water.
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Sound at the right vibration can bore holes through a solid object.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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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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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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