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Submitted by kc0zie on Thu, 07/22/2021 - 20:21
Source
Scientific American
Author
Scientific American
Publish Date
Mon, 12/16/2002 - 12:00

How does one arrive at the exact number of cycles of radiation a cesium-133 atom makes in order to define one second?

Article Link
https://www.scientificamerican.com/article/how-does-one-arrive-at-th/

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