QR codes aren’t new technology. They’ve actually been around for 30 years, but their adoption has skyrocketed in recent years.

QR codes are handy ways to connect you to information, access tickets, ... (A geeky aside: the 1-1-3-1-1 layout of these finder patterns was chosen because it’s not often used in printed media.) ...

Scanning a QR code without your phone requires a little help from Google or a webcam. Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday.

According to Insider Intelligence, more than 99.5 million smartphone users will scan a QR code by 2025, up from 83.4 million in 2022. There’s ...