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The '''magnetic moment''' of a [[magnet]] is a quantity that determines the [[Force (physics)|force]] that the magnet can exert on ...and spins of some elementary particles <ref>See [[NIST]]'s '''Fundamental Physical Constants''' website http://physics.nist.gov/cgi-bin/cuu/Results?search_for ...

...e]]. It is named after the physicist [[Max Planck]]. It is an important [[quantity]] in [[quantum physics]]. The Planck constant has [[dimensional analysis|dimensions]] of physical action: [[energy]] multiplied by [[time]], or [[momentum]] multiplied by [[ ...

...che Prinzipien der Quantentheorie, Leipzig: Hirzel English translation The Physical Principles of Quantum Theory. Chicago: University of Chicago Press, 1930.</ ...lamp [[wikt:spectrum|spectrum]]. He had to find a [[wikt:relate|related]] quantity called "[[wikt:amplitude|amplitude]]" and multiply amplitude by amplitude ( ...

...one also to indicate the [[accuracy]] of a computed number; for example, a quantity that was computed as 123,456 but is known to be accurate only to within a f ...on (signal processing)|quantization]] that occurs when [[physical quantity|physical quantities]] must be encoded by numbers or [[digital signal]]s. ...