BEHIND THETHINGS

The index

Episodes

  1. 001Card TapYour bank card has no battery. So how does it pay with a single tap?
  2. 002BarcodeNext up
  3. 003QR CodeIn the works
  4. 004Traffic LightIn the works
  5. 005MicrowaveIn the works
  6. 006Wi-Fi BarsIn the works