Quick Response Codes a.k.a. QR Codes are appearing everywhere. How do they work? Simply point your smartphone camera with a QR app running to the logo and you will automatically be shown the encoded text or forwarded to a website. With the above QR code you will be redirected to this homepage. If you want to make your own QR code this can be easily done with the Google Charts API. Simply point your browser to https://chart.googleapis.com/chart?chs=150×150&cht=qr&chl=SOME+TEXT+OF+YOUR+OWN&choe=UTF-8 and replace the text with whatever you want. For the QR above I used https://chart.googleapis.com/chart?chs=150×150&cht=qr&chl=http://www.cubewot.de&choe=UTF-8. For spaces use the plus sign. That’s it.