Le secunda (symbolo: s) es le unitate SI de tempore.
Illo es definite como le duration de 9.192.631.770 periodos del radiation correspondente al transition inter le duo nivellos hyperfin del stato fundamental del atomo de cesium 133.
Secunda |
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instantia de: Unitates de base del SI, unitate de tempore[*], unitate coherente del SI[*], UCUM base unit[*] |
subclasse de: intervallo[*] |
parte de: Minuta, centimeter–gram–second system of units[*], MKS system of units[*] |
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Commons: Second |
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