this post was submitted on 15 Jul 2025
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Science Memes

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[–] Natanox@discuss.tchncs.de 7 points 1 week ago

Reminds me of the diy antenna made out of copper wire, an empty CD spool and a single CD on its back. Those antennas could work as far as 1km if there was no obstruction, or 400m through light obstructions. It was awesome.