One cubic foot of gold weighs more than 1,200 pounds!
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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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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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In zero gravity, a candle's flame is round and blue.
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Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
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