this post was submitted on 16 Sep 2023
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Privacy

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[–] [email protected] 6 points 1 year ago* (last edited 1 year ago) (1 children)

I think your fag packet calculation has got a power of ten wrong somewhere. Wi-fi is GHz so that would be on the order of centimetres I think.

[–] [email protected] 4 points 1 year ago (2 children)

Yes. Wifi is 2.4 GHz, speed of light is 0.3 Gm/s. Therefore one wavelength is 0.3/2.4 m/s/Hz = 12.5 cm

[–] [email protected] 2 points 1 year ago

Or 0.001 football pitches

[–] [email protected] 1 points 1 year ago

Yeah, you’re right. Writing it smaller than 12.5 cm should do it, which is entirely reasonable.