16 November 2018, Paris, France: Today, in a landmark decision, representatives from 60 countries voted to redefine the International System of Units (SI), changing the world's definition of the kilogram, the ampere, the kelvin and the mole, for ever. http://www.npl.co.uk/news/international-system-of-units-overhauled-in-historic-vote …
11:28 AM - 16 Nov 2018
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