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Wolfgang Scheffler erläutert auf der Konferenz "Solarenergie für Afrika 2010" in Düsseldorf die Funktionsweise des von ihm erfundenen solaren "Scheffler-Spiegels".

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current19:59, February 10, 2016Thumbnail for version as of 19:59, February 10, 201603:25480 × 269 (12 KB)Tom Sponheim (Talk | contribs)created video


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