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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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In many developing countries energy (e.g., for cooking) is rare, whilst we consume it in excess...
Wolfgang Scheffler is the inventor/promoter of Scheffler Community Kitchens--large parabolic...