Just about any electroluminescent substance is cool but rather expensive if you buy it at the shops. If you need some cheap EL ink, watch this video to learn how to make blue EL powder out of cheap, easy-to-make ZnS green glow powder.
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Science Experiments How to Make electroluminescent (EL) ink at home by re-doping glow powder
Nov 9, 2010 12:00 AM
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