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World's smallest QR code, smaller than bacteria, could store data for centuries
(www.sciencedaily.com)
this post was submitted on 30 Mar 2026
145 points (98.0% liked)
Technology
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I remember seeing that years ago, wanted to make like a photoresist mask to etch it into metal.
These days you could probably feed it to a laser engraver, get some nice depth on a thicker sheet of e.g. aluminium, would be a nice display piece at least.