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Goryan [66]
3 years ago
10

What is one second time ?​

Biology
1 answer:
VikaD [51]3 years ago
3 0

Answer:

Today, one second is defined as “9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom”. That's a mouthful.

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