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Namespace Prefixes

PrefixIRI
n6http://qudt.org/vocab/quantitykind/
dctermshttp://purl.org/dc/terms/
n9http://qudt.org/vocab/sou/
n4http://qudt.org/schema/qudt/
n2http://qudt.org/vocab/unit/
n5http://qudt.org/vocab/dimensionvector/
rdfshttp://www.w3.org/2000/01/rdf-schema#
n7http://qudt.org/2.1/vocab/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
xsdhhttp://www.w3.org/2001/XMLSchema#
n8http://www.ontology-of-units-of-measure.org/resource/om-2/

Statements

Subject Item
n2:SEC
rdf:type
n4:Unit
rdfs:label
секунда sekunda δευτερόλεπτο 秒 sekunda секунда segundo secundum सैकण्ड sekunda second Sekunde ثانیه secondo segundo ثانية saniye secundă seconde 秒 másodperc saat שנייה
rdfs:isDefinedBy
n7:unit
dcterms:description
The \(Second\) (symbol: \(s\)) is the base unit of time in the International System of Units (SI) and is also a unit of time in other systems of measurement. Between the years1000 (when al-Biruni used seconds) and 1960 the second was defined as \(1/86400\) of a mean solar day (that definition still applies in some astronomical and legal contexts). Between 1960 and 1967, it was defined in terms of the period of the Earth's orbit around the Sun in 1900, but it is now defined more precisely in atomic terms. Under the International System of Units (via the International Committee for Weights and Measures, or CIPM), since 1967 the second has been defined as the duration of \({9192631770}\) periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.In 1997 CIPM added that the periods would be defined for a caesium atom at rest, and approaching the theoretical temperature of absolute zero, and in 1999, it included corrections from ambient radiation.
n4:dbpediaMatch
http://dbpedia.org/resource/Second
n4:hasDimensionVector
n5:A0E0L0I0M0H0T1D0
n4:informativeReference
http://en.wikipedia.org/wiki/Second?oldid=495241006
n4:symbol
s
n4:hasQuantityKind
n6:Period n6:Time
n4:applicableSystem
n9:IMPERIAL n9:SI n9:USCS n9:CGS n9:CGS-EMU n9:CGS-GAUSS
n4:conversionMultiplier
1
n4:definedUnitOfSystem
n9:USCS
n4:iec61360Code
0112/2///62720#UAA972 0112/2///62720#UAD722
n4:omUnit
n8:second-Time
n4:ucumCode
s
n4:udunitsCode
s
n4:uneceCommonCode
SEC