Â鶹Éç

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Sir Isaac Newton was famed for his theory of universal gravity - but his techniques to stop coin counterfeiting may be less well known. As he is commemorated on the new fifty pence coin, the Â鶹Éç's Anu Anand visits his childhood home in Lincolnshire to find out more about his work for Britain's Royal Mint. (Image: A fifty pence coin being examined. Credit: Photo by Matt Cardy/ Getty Images )