Giant Marble Harvests Energy from Sun and Moon : It looks like a giant, glass marble. But this globe is no game. It's a sun-tracking, solar energy concentrator created by Barcelona-based architects and, according to the designers, is able to collect not just sunlight but moonlight as well. Renewals Energy, Glasses, Alternative Energy, Green Buildings, Solar Panels, Solar Power, Moon Lights, Moonlight, Solar Energy
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