Freeing energy from the grid: Justin Hall-Tipping on

What would happen if we could generate power from our windowpanes? In this moving talk, entrepreneur Justin Hall-Tipping shows the materials that could make that possible, and how questioning our notion of ‘normal’ can lead to extraordinary breakthroughs. (Recorded at TEDGlobal 2011, July 2011, in Edinburgh, Scotland. Duration: 12:45.)

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