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Difference between revisions of "Second"

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{{MitoPedia
|abbr=s
|abbr=s
|description=The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the caesium frequency ∆''ν''Cs, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s−1.
|description=The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the caesium frequency ∆''ν''<sub>Cs</sub>, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s<sup>−1</sup>.
|info=Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216 ISBN 978-92-822-2272-0. - [https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf »Open Access pdf«]
|info=Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216 ISBN 978-92-822-2272-0. - [https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf »Open Access pdf«]
}}
}}
{{Keywords SI base units}}
{{MitoPedia concepts
{{MitoPedia concepts
|mitopedia concept=Ergodynamics
|mitopedia concept=Ergodynamics
}}
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{{MitoPedia methods}}
{{MitoPedia O2k and high-resolution respirometry}}
{{MitoPedia topics}}

Revision as of 06:20, 15 August 2019


high-resolution terminology - matching measurements at high-resolution


Second

Description

The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the caesium frequency ∆νCs, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s−1.

Abbreviation: s

Reference: Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216 ISBN 978-92-822-2272-0. - »Open Access pdf«


Template:Keywords SI base units


MitoPedia concepts: Ergodynamics