MAKE A MEME View Large Image Franklin Institue - DSC06610.JPG Exhibit in the Franklin Institute Philadelphia Pennsylvania USA I took this photograph 2011-10-20 11 30 28 Daderot Amazing Machine collection in the Franklin Institute Perpetual motion machines
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Keywords: Redheffer's perpetual motion machine - Franklin Institue - DSC06610.JPG Exhibit in the Franklin Institute Philadelphia Pennsylvania USA I took this photograph 2011-10-20 11 30 28 Daderot Amazing Machine collection in the Franklin Institute Perpetual motion machines
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