Programmable tattoos display images that you like

Scientists at the Rensselaer Polytechnic Institute have come out with the programmable tattoo concept that uses hair-sized nanotubes embedded in the skin to display an image of your choice. The images stay on even after you turn off the power. The possibilities with these kinds of concepts are amazing, imagine proposing to your girlfriend with a "will you marry" me tattoo across your chest!

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