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World's smallest QR code can store data for thousands of years ‪—‬ but you need an electron microscope to see it
Scientists created a tiny matrix that stores data by etching its grid into a thin ceramic film with a focused ion beam.
Full-colour 3D printing is very different from the multicolour capabilities provided by filament swapping FFF devices. They have a limited palette of four or more filaments, and that’s all they can ...
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