Oct 09
Fascinating and good ideas at the same time, the marble and wood machinery of projects convertible Matthias. On its English-language Web pages it displays Read the rest of this entry »
Sep 14
Lots of solar crates According to the Building on the pages of "solarcooking.org." In English with many reports, photos, sketches and information. Others Solarparabolspiegel from clay, awesome!
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