| http://www.w3.org/ns/prov#value | - ple sales are set to begin in October, with overseas sales targeting especially Asia and the Middle East set for 2014 or earlier.The device features a row of aluminum mirror bars that can slowly rotate as the sun moves across the sky and reflect its light back onto a central tube that is packed with high-performance, multi-layered solar cells.Its inventors say the system requires far less silicon
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