Scientists have created a microscopic QR code so tiny it can only be seen with an electron microscope—smaller than most bacteria and now officially a world record. But this isn’t just about size; it’s about durability. By engraving data into ultra-stable ceramic materials, the team has opened the door to storing information that could last for centuries or even millennia without needing power or maintenance.
I remember seeing that years ago, wanted to make like a photoresist mask to etch it into metal.
These days you could probably feed it to a laser engraver, get some nice depth on a thicker sheet of e.g. aluminium, would be a nice display piece at least.
I remember seeing that years ago, wanted to make like a photoresist mask to etch it into metal.
These days you could probably feed it to a laser engraver, get some nice depth on a thicker sheet of e.g. aluminium, would be a nice display piece at least.