The world’s leading metrologists are keen to redefine the seven SI units in what is billed as the system’s biggest overhaul since the French Revolution. Robert P Crease reports from a recent meeting that discussed the proposed changes

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The world’s leading metrologists are keen to redefine the seven SI units in what is billed as the system’s biggest overhaul since the French Revolution. Robert P Crease reports from a recent meeting that discussed the proposed changes
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