Pope Francis was once a nightclub bouncer.
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In Ice Age, the drawings of characters during the end credit roll - and Sid's drawing of himself on a wall - were all done by the children of the animators.
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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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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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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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