How does Google Maps use satellites, GPS and more to get you from point A to point B? What is the tech that powers Spotify’s recommendation algorithm? From the unique tech that works in seconds to power tap-to-pay to how Shazam identifies 23,000 songs each minute, WSJ explores the engineering and science of technology that catches our eye. Chapters: 0:00 Google Maps 9:07 LED wristbands 14:30 Spotify’s algorithm 21:30 Tap-to-Pay 28:18 Noise-canceling headphones 34:33 MSG Sphere 41:30 Shazam Tech Behind 'The Tech Behind' explores the amazing engineering, computing, science and algorithms that power our favorite tech. #Tech #Algorithm #WSJ