Metric system
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The metric system is a system of measurement that standardises a set of base units and a nomenclature for describing relatively large and small quantities using decimal-based multiplicative unit prefi
A kilogram mass and three metric measuring devices: a tape measure in centimetres, a thermometer in degrees Celsius, and a multimeter that measures potential in volts, current in amperes and resistance in ohms.
James Clerk Maxwell played a major role in developing the concept of a coherent CGS system and in extending the metric system to include electrical units.
Pavillon de Breteuil, Saint-Cloud, France, the home of the metric system's Mètre des Archives and Kilogramme des Archives since 1875
Metric prefix
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A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decimal. Each prefix has a unique symbol th
Distance marker on the Rhine at Rüdesheim: 36 (XXXVI) myriametres from Basel. The stated distance is 360 km; the decimal mark in German is a comma.