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From Engineering.com: Sonic Solar Cells

Nov 15, 2013

In this week's episode of This Week in Engineering, hosts Dan Hedges and Vince Penman discuss the resurrection of the Kepler telescope, sewer bomb detectors, a rock-climbing robot, 3D painting, sonic solar cells, and tires that adjust their treads. 

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[youtube]http://www.youtube.com/watch?v=itCHsrBMOr8[/youtube]