Friday, December 23, 2011

Holiday Calendar: Circle of Power - GeoEye High Resolution Imagery Featured on MSNBC Photo Blog

Will future archaeologists assume this circular structure was some sort of 21st-century Stonehenge? They wouldn't be completely wrong if they did: This is Spain's Gemasolar power-generating array, as seen in a satellite image from the GeoEye commercial Earth-imaging venture.

Like Stonehenge, the array is laid out geometrically to track the position of the sun. But Gemasolar isn't meant to mark the year's astronomical milestones. Instead, it will concentrate sunlight to provide power for 25,000 homes around the city of Seville...

A picture taken by the GeoEye-1 satellte on Nov. 4, 2010, shows the Gemasolar power-generating array in Seville, Spain. At the center of the array is a 40-story-high concrete tower, ringed by 2,650 mirrors. The mirrors focus sunlight on the tower, which stores the heat and converts it to energy.

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