Why aren’t we only using solar power? – Alexandros George Charalambides

View full lesson: http://ed.ted.com/lessons/why-aren-t-we-only-using-solar-power-alexandros-george-charalambides Solar power is cheaper and more sustainable …

The R5800 solar concentrator, replaced by the new R23k, is made from an ordinary fiberglass satellite dish. It is covered in about 5800 3/8″ (~1cm) mirror ti…
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