Lots of Oranges Power French Billboard
By: Anthony Adragna
Published: April 14, 2011

More than 2,500 oranges were attached to wood with copper and zinc spikes. The acidic orange juice dissolved the metal and created an electric current that powered a billboard. The advertisement was from Tropicana.
What do you think? Pretty cool or a waste of oranges?
http://www.youtube.com/watch?v=j_zoHUykPi4&feature=player_embedded#at=25
Photo by The Ewan