MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
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Passengers on the Beijing subway can pay with plastic bottles.
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Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
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In Mexico, artists can pay their taxes using artwork that they create.
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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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Brass doorknobs automatically disinfect themselves in about 8 hours.
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