The Daily Mail's chief royal correspondent, Rebecca English, told Vanity Fairthat "in the run up to the 2011 royal wedding, senior members of the … Source link
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The colour of money: How the Royal Canadian Mint is using cutting-edge laser technology to give coins a surprising new look
Special five-kilogram silver coins produced by the Royal Canadian Mint show the famous schooner the Bluenose with the sky behind it tinted pink, blue and many shades in between. A new technique called ‘plasmonic colouring’ uses pulses of laser light to alter the surface of metals to give them bright …
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