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[–]HeavyBrain0 points
14 points
14 points
(+14|-0)
ago
the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom x 30.
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[–] HeavyBrain 0 points 14 points 14 points (+14|-0) ago
the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom x 30.
[–] mobilesand 0 points 5 points 5 points (+5|-0) ago
Technically correct, which is the best kind of correct.
[–] paradox42 0 points 3 points 3 points (+3|-0) ago
In this reference frame, this is exactly correct.
[–] Plant_Boy ago (edited ago)
What is a hyperfine level?
I am under the thought that the ground state is unexcited, this wouldn't be at absolute zero, would it?