this post was submitted on 29 Sep 2024
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Mildly Interesting
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Since the 2019 SI redefinition, avogadro’s number is a constant.
https://en.wikipedia.org/wiki/Avogadro_constant
Edit: looks like we were both right! I was reading through your link and it seems the work reported by the NIST led to the exact definitions for Avogadro’s number and the Planck constant.