The idea of concentrated solar power is 100 years old. Explore the journey from Philadelphia a century ago to the Sahara of the future.

 

Classroom educators and outreach professionals can register to download HD segments for free by visiting the Educators section of the Earth: The Operators' Manual website.
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    Nov. 19, 2013

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This material is based in part upon work supported by the National Science Foundation under Grant No. 0917564. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.