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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.
Just how small can a QR code be? Small enough that it can only be recognized with an electron microscope. A research team at TU Wien, working together with the data storage technology company Cerabyte ...
For those of us who weren't paying attention, over the last few years, scientists around the world have been one-upping each other in a bid to create the smallest QR code that can be reliably read.
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