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Answer for direct solar hydrogen

With many auto manufacturers jumping on the fuel cell bandwagon, the question naturally arises: where is all this hydrogen going to come from? And the answer, according to the prestigious Ecole Polytechnique Fédérale de Lausanne…


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Lithium cells the size of rice

A video on Treehugger shows how scientists have produced lithium-ion batteries from a nozzle the width of a human hair. Although only ever likely to be used for small, low power gadgets, these minute batteries actually deliver enough…