[ExI] The Best Clock Ever!

[John Clark]

*The following article was in the September 23, 2026 issue of the journal
Nature, the clock is off by one second in 260 billion years:*

*Best clock ever: timekeeper based on lutetium atoms wows researchers*
<https://www.nature.com/articles/d41586-026-03019-w>

*John K Clark    See what's on my list at  Extropolis
<https://groups.google.com/g/extropolis>*

apb
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