"...German architect André Broessel, of Rawlemon,
has looked into his crystal ball and seen the future of renewable
energy. In this case it's a spherical sun-tracking solar
energy-generating globe -- essentially a giant glass marble on a robotic
steel frame. But this marble is no toy. It concentrates both sunlight
and moonlight up to 10,000 times -- making its solar harvesting
capabilities 35 percent more efficient than conventional dual-axis
photovoltaic designs...."
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