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Arcane
12-18-2010, 05:01 PM
Title says it all.

http://articles.mercola.com/sites/articles/archive/2010/12/15/solar-furnace-melts-rock.aspx

masimec
12-18-2010, 05:07 PM
Where this machine capture solar ray???

macona
12-18-2010, 05:23 PM
My WAG is from the roof through a mirrored tube.

darryl
12-18-2010, 07:32 PM
Awesome! Gotta make me one of those- oh wait- you need sunshine. Hmm. I'll have to wait til summer. Until then, I have an idea- make up a continuous long strip of clear plastic that has an ever encreasing bevel angle on one edge. Then you wind it into a flat spiral and it becomes a giant fresnel lens.