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Unless you have a system worked out, you’re obviously familiar with the idea of “checking carefully” when handing out the currency notes in a dim light place. Designer Jaesik Heo, Hojoon Lim and Dahaeng Lim want to save you the trouble with Luminous Paper Money, which emits a soft light in the dark, reducing your risk of handing out wrong notes.

Designer: Jaesik Heo, Hojoon Lim & Dahaeng Lim