All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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The hole in the soda can tab is actually used to hold a straw in place and stop it from rising.
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Mathway.com solves all kinds of math homework problems with step by step explanations.
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