Ultra-tiny ceramic QR code could store data for centuries without power
TL;DR Summary
Researchers etched a 1.98-square-micrometer QR code into a thin ceramic film, readable only with an electron microscope, demonstrating a durable, energy-free data storage method that could hold over 2 TB per A4 sheet for centuries or millennia and has earned a Guinness World Record.
Topics:technology#ceramic-materials#data-storage#electron-microscopy#long-term-storage#qr-code#technology
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