Namaste, iam Diane Turner, Have a blessed day.
How Long Is A Second? [Solved]
The second (s or sec) is the International System of Units (SI) unit of time measurement. One second is the time that elapses during 9,192,631,770 (or 9.192631770 x 109 in decimal form) cycles of the radiation produced by the transition between two levels of the cesium-133 atom.
Who decides how long a second is? - John Kitching
Discover how scientists developed atomic clocks, which use the vibrations of atoms to measure and maintain a globally consistent …
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