SI means 'system internationale'. It is the French acronym for the International System of Units, from which the Metric units(metres, centimetres) came from.
''Internation system of units ", as I recall. Based on the metre, kilogram and second rather than the older CGS (centimetre, gram, second) system. Originally invented by the French after the...
The International System of Units (SI) defines seven units of measure as a basic set from which all other SI units are derived. These SI base units and their physical quantities are:[1] metre for...
The reason science uses SI units is because all the nations of the world except three (Burma, Liberia and the U.S.) have adopted SI units as the standard units of measurement. The SI units also have...