A big step towards the redefinition of the kelvin

Metrologists are measurement artists who are very precise – in the case of the Boltzmann constant up to the sixth decimal place. Whoever is able to determine it very exactly will cause a small revolution in the field of worldwide temperature measurement: The temperature unit will then no longer be based – as hitherto – on a chemico-physical material property, i.e. the triple point of water, but on an unchangeable fundamental constant.

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A big step towards the redefinition of the kelvin