Question

how is one second estimated?​

Answer 1

Answer:

ooooooooooooo in the world of the

Answer 2

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”. When scientists moved to their new “atomic clock” in 1967, they calibrated it with his measurements.

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