197
Acorn rule
(sh.itjust.works)
From The Onion Book of Known Knowledge.
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this post was submitted on 15 Sep 2024
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There's no way, without violating the laws of physics, can you fit any kind of 2.4Ghz modem into something as small as an acorn.
You can with a sub-wavelength antenna like a nintendo joycon has, it's less than 10mm in X and Y axes. It will just have terrible reception, like a nintendo joycon has.
Also it could be a higher frequency which would allow a smaller antenna.