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Glow-in-the-dark paths?

A park in Cambridge is set for a trial of a new luminous surfacing which will glow in the dark. "Starpath" technology has ultraviolet crystals embedded in it's surface and starts to turn blue when the sun sets. The luminosity of the crystals is maintained by a protective film that is sprayed on. The trial is being held at Cambridge's Christ Pieces park. You can read more about this technology at and the Daily Telegraph

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