Electricity-Free Light-bulbs


Mon, Nov 18th, 2013 11:00 by capnasty NEWS

On the Korean website Hobby :Design a guide on how to build electricity-free light-bulbs that glow in the dark. This site is great, by the way, providing instructions on how to build all sorts of crazy stuff, like a concrete alarm clock or the Eiffel tower frame, just to name a few.



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