Have you ever seen one of those weird barcodes on parcels and packaging? They are called Quick Response barcodes. These barcodes are very similar to the ones you and I know of but the have the extra second dimension to save data to. A post on Coding 4 Fun allows you to encode and decode these odd shapes (see here). You can put your name on things, add URLs to anything and even put small images in a binary format on everyday items. Looks fun anyway. I suggest you try it!
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