Listen
On Now : You and Yours
Disability benefits; School bus fares; Are we back in love with carpet?
BBC Radio 4

Simon Singh's Numbers, A Further Five Numbers, Two - At the double QR code

What is this?

A QR code is a type of barcode which can contain links to webpages. Mobile phones with a camera and an appropriate application are able to read these codes and take you to the address contained within it.

This code will link to the page for Simon Singh's Numbers, A Further Five Numbers, Two - At the double when read using a QR code reader.

You may save, print or share the image.