Behold the World’s Largest QR Code!  The Kraay Cornfield QR Code
The Kraay Cornfield QR Code  You’ve probably noticed that QR
codes, those little pixelated graphics, are showing up pretty
much everywhere these days. The idea is that QR codes are an
effective way to encode a URL such that it can be recognized by
a smartphone. By slapping a QR code on a poster, package, or bus
stop, someone can point her smart-phone camera at the QR code,
let the phone’s software do its thing to extract the encoded
URL, and be looking at a relevant website in seconds, no typos
involved.  Now, just how pervasive have QR codes become? Well,
that picture above is an aerial shot of a cornfield at the Kraay
family farm in Alberta, Canada. And just how big is it? Well,
according to the folks at the Guinness Book of Records, it’s
309,570 square feet.  Best of all, the corn-field QR code
actually works, as verified by the Kraays using a helicopter.
The Kraays have created cornfield mazes at their farm for years
as part of the many at