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A comment on One quantum transition makes light at 21 cm. Parent comment

Re:One quantum transition makes light at 21 cm by ddalex on Thursday April 24, 2025 @01:31PM (#43785280)
How many inches is that
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Re:One quantum transition makes light at 21 cm by imoverclocked on Thursday April 24, 2025 @01:33PM (#43785302)
It is 21.1061… cm worth of them.

Fun fact, your computer is really good at answering this question for you. So is (say) Google Search.

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Re:One quantum transition makes light at 21 cm by barbazoo on Thursday April 24, 2025 @01:35PM (#43785333)
Or an LLM, or even just using MacOS spotlight search autocompletes "21cm how many inches " to the right answer.
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