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.

QR codes are everywhere now. They track our packages, enable contactless payments and even eliminate printed restaurant menus. And their popularity is only growing. A recent study by Uniqode revealed ...

We've all dealt with them over the past 10 years. The rise in usage of QR codes, or quick-response codes, has been incredibly noticeable. These are codes that you scan with your phone to display ...