SI is an international standard system of units. Most people would call it the metric system. SI has standards for the kilogram and meter that can be referenced, to make and calibrate measuring devices.
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System International
Specially includes four more units of electric current, temperature, light luminosity, amount of substance
Includes two supplementary. One for plane angle and the other for solid angle.
So consistent.
Somehow an evolved system
In SI units, that would be the Newton.In SI units, that would be the Newton.In SI units, that would be the Newton.In SI units, that would be the Newton.
The principal SI units used to derive all other SI units are the base SI units. These are the units for physical quantities such as length, time, mass, electric current, temperature, amount of substance, and luminous intensity.
When SI units combine, they create derived SI units that are used to express physical quantities. These derived units are formed by multiplying or dividing the base SI units. Examples include the Newton (kg*m/s^2) for force and the Pascal (N/m^2) for pressure.
The abbreviation for the International System of Units is SI.
It is the International Standard of units.