Super Solar Cells, Where Birdsong Began

Super Solar Cells:
Dr Graham Phillips investigates new technology that is able to convert more than 40 per cent of the sun's light into electricity. This is more than double the efficiency of today's domestic rooftop solar panels, and could eventually lead to cheaper sources of renewable energy.

Where Birdsong Began:
Are our birds home-grown Aussies, or have we inherited a second-hand fauna from somewhere else? Mark Horstman explores genetic and fossil evidence that reveals the majority of the world’s birds have Australian ancestors.

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S16E07 - Powering The Mind