RFID tags are already used to trace everything from poker chips to hotel towels, but what if these little pellets were embedded directly within your lunch, providing everything you'd ever wanna know about that ham sandwich you're about to beast? That's the idea behind NutriSmart -- a food tracking system that revolves around edible RFID tags. Developed by Hannes Harms, a design engineering student at the Royal College of Art in London, t
