Cheap lights

March 10, 2008 at 10:54 am | Posted in Strange, Technology | Leave a comment

Lets see – buy aluminum foil from grocery store. Bath in acid to turn it into sapphire (a form of aluminum oxide).  Seal in gas and apply voltage.  Tada. Let there be light.
http://www.livescience.com/technology/070613_aluminumfoil_lamps.html 

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