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(Photograph) - Pub science: Alice Hague and Andrew Coulthard, postgraduate students at Glamorgan University, Pontypridd, run through scientific tricks outside the Cardiff pub, Eli Jenkins, from their show "Beertricks Potters" for Science, Engineering and Technology week, which ends today. The tricks include pouring a pint down a length of string and making peanuts dance in a glass of beer.