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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.
A QR Code scan is like a raised hand in a crowded room. It's voluntary, visible, and tells you exactly who's interested. Compare that to website cookies, which are more like secretly following someone ...
On December 3, the team secured a Guinness World Record for the world’s smallest QR code. Spanning just around 2 sq. micrometres, the code is about one-third the size of the previous record holder and ...
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