it sounds like there's some kind of coupling, inductive or optoelectronic but yes, I also want the juicy details! so this is the clock https://en.wikipedia.o

it sounds like there's some kind of coupling, inductive or optoelectronic but yes, I also want the juicy details! so this is the clock https://en.wikipedia.org/wiki/NIST-F1 https://en.wikipedia.org/wiki/NIST-F1 or this https://en.wikipedia.org/wiki/NIST-F2 https://en.wikipedia.org/wiki/NIST-F2 or there's already F4 too, but it doesn't have a Wikipedia article yet https://www.nist.gov/news-events/news/2025/04/new-atomic-fountain-clock-joins-elite-group-keeps-world-time https://www.nist.gov/news-events/news/2025/04/new-atomic-fou... but maybe they are talking about the new non-microwave clocks that use Ytterbium-based optical combs ... or about the Aluminum ion clock https://www.nist.gov/news-events/news/2025/07/nist-ion-clock-sets-new-record-most-accurate-clock-world https://www.nist.gov/news-events/news/2025/07/nist-ion-clock... mind blown