Live Science on MSN
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.
ScienceAlert on MSN
World's Smallest QR Code Is So Tiny It's Invisible to The Human Eye
The smallest QR code in the world is so very tiny that your phone would need an electron microscope to scan it. The matrix ...
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