# SI unit

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## SI unit

any of the units adopted for international use under the Système International d'Unités, now employed for all scientific and most technical purposes. There are seven fundamental units: the metre, kilogram, second, ampere, kelvin, candela, and mole; and two supplementary units: the radian and the steradian. All other units are derived by multiplication or division of these units without the use of numerical factors
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
In a function held here at CSIR-National Physical Laboratory (CSIR-NPL) today, former BARC director R Chidambaram introduced revised SI units.
A 10 cm x 10 cm x 10 cm "SI Cube", which helps students learn SI units, is presented.
(6c) that the reference constant whose numerical value is fixed when it is expressed in its SI unit N [A.sup.-2] = [s.sup.-2] m kg [A.sup.-2] = [s.sub.0].
Even when other SI units are used in the article, I'm always that the traditional shorthand from a first draft might have carried through intact; a difference of [10.sup.3] is sometimes not enough to make the intended meaning obvious, even to an informed reader.
Presently, the traceability of these CRMs to SI unit is mostly achieved through foreign National Measurement Institutes (NMIs).
What is the SI unit of work or energy named after a British physicist?
Which German physicist gave his name to the SI unit of frequency?
According to the market, most of the goods produced locally are labeled with the SI unit system, and it was only the imported products that have the old measurement descriptions.
With the completion of the uncertainty analysis, the new 10 pF cryogenic capacitor is now fully ready to be used in the ECCS, with a route to tie the ECCS to the SI unit of capacitance with an uncertainty of about 4X[10.sup.-8].
Which Croatian-born electrical engineer had the SI unit of magnetic flux density named after him?

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