antipode77https://en.m.wikipedia.org/wiki/International_System_of_Units
The International System of Units, known by the international abbreviation SI in all languages and sometimes pleonastically as the SI system, is the modern form of the metric system and the world's most widely used system of measurement.
It is the only system of measurement with an official status in nearly every country in the world, employed in science, technology, industry, and everyday commerce.
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