the fresnel furnace is unavoidable
unless it is .
http://www.armory.com/~spcecdt/solar_furnace/plans.html
http://www.armory.com/~spcecdt/solar_furnace/plans.html
posted by yesbob at April 04, 2008
unfortunately the froogy doesn't know what the froogy is. you have to see for yourself.
posted by yesbob at April 04, 2008
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