For those of us who weren't paying attention, over the last few years, scientists around the world have been one-upping each ...

A 1.98-square-micrometer QR code, etched into ceramic thin film and verified by Guinness, showcases a new approach to ultra-dense, long-term data storage.

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device.

The EU and the UK are rolling out QR codes that allow people to travel again during the pandemic. The systems both involve Chinese-style encoding of personal information into scannable codes. Insider ...