Conversion of units of measurement
The definition, the agreement and the practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. Disparate systems of measurement used to be very common. Now there is a global standard, the International System (SI) of units, the modern form of the metric system. The SI has been or is in the process of being adopted throughout the world. But weights and measures is often a subject of governmental regulation.
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