Narrow your search
They could be the most ignored bit of technology in today's society, but their real potential could soon be unlocked, and it's pretty cool.
German food company comes up with cookies featuring QR codes printed on edible paper. The codes can be scanned to open a link to a Web site, a love note, or even a party invite.
The world's largest QR code is also partly edible. A down-home farm experience goes high-tech by carving a code out of a corn field.