Kibble balance: Metrology community honours late Dr Bryan Kibble

The global metrology community has paid tribute to the late Dr Bryan Peter Kibble, who worked at the National Physical Laboratory (NPL). Dr Kibble’s famous invention, the watt balance, is being renamed after him in a unanimous decision by the Consultative Committee for Units (CCU). Invented in the 1970s, the device measures the Planck constant in SI units enabling the redefinition of the SI unit of mass: the kilogram, which is proposed for 2018.

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