Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. You probably already know how to scan a QR code with your phone. It ...

I have a friend who calls me occasionally to come help him with various little things having to do with the technology at his house. This week, one of his requests was to learn more about QR codes and ...

For most of us, referring to the rectangular gadget in our pocket as a “phone” is almost an artifact from the past. Sure, our modern mobile devices can make and take old-fashioned voice calls (at ...