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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.
March 5, 2026: We added one new Clash Royale QR code for the Skeleton Shield emote. What are the new Clash Royale codes? If you're looking for new emotes and other freebies in Clash Royale, redeem ...
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