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A comment on For precision, the sapphire clock outshines even the best atomic clocks. Parent comment

Re:For precision, the sapphire clock outshines even the best... by rtkwe on Saturday August 21, 2021 @09:46AM (#28256976)
Neat, I just remembered the quasi competition between the Si-28 sphere and the torsion balance (which I think is what they've gone with).
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