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Entity > Abstract > Quantity > PhysicalQuantity > ConstantQuantity > TimeMeasure > TimeDuration > SecondDuration
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SecondDuration comparison table
Subject is an instance of documentation is a kind of be first domain of be second domain of have axiom
SystemeInternationalUnit The Class of Systeme International (SI) unitsUnitOfMeasureSubtractionFnMeasureFn
(=>
(and
(instance ?REL RelationExtendedToQuantities)
(instance ?REL BinaryRelation)
(instance ?NUMBER1 RealNumber)
(instance ?NUMBER2 RealNumber)
(holds ?REL ?NUMBER1 ?NUMBER2))
(forall (?UNIT)
(=>
(instance ?UNIT UnitOfMeasure)
(holds ?REL (MeasureFn ?NUMBER1 ?UNIT) (MeasureFn ?NUMBER2 ?UNIT)))))
TimeDuration Any measure of length of time, with or without respect to the universal timelineTimeMeasureMagnitudeFnfrequency
(=>
(instance ?FUNCTION TimeDependentQuantity)
(domain ?FUNCTION 1 TimeMeasure))
SecondDurationTimeDurationSI TimeDuration. Symbol: s. It is one of the base units in SI, and it is currently defined as follows: the SecondDuration is the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom CoulombFnfrequency
(equal
(MeasureFn ?NUMBER PicoSecond)
(MeasureFn (MultiplicationFn ?NUMBER 1.0E-12) SecondDuration))

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