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SI

(International System of Units)
(modern metric system)

SI indicates the International System of Units, the current well-accepted metric units. The system offers refined definitions for a basic set of units (meter, kilogram, second, kelvin, mole, and candela) and a system of derived units. The most common metric units predate the system and are also in other similar metric-based systems. Some other non-SI units remain in common use, especially for electromagnetic measurement, such as for magnetic flux density: in addition to the SI unit, the tesla, a non-SI (CGS) unit, the gauss, is still in use.


(measurement)
http://en.wikipedia.org/wiki/International_System_of_Units

Referenced by:
CGS
gauss (G)
Julian date (JD)
joule
jansky (Jy)
magnetic flux (B)
magnetic flux density (B)
solid angle (Ω)
Stefan-Boltzmann constant (σ)
tesla (T)
time standard
terrestrial time (TT)

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