Artificial muscles offer a route to greener air conditioning, breakthroughs in semiconductor physics and hidden consciousness

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In this episode of the Physics World Weekly podcast, Paul Motzki of Germany’s University of Saarland explains how artificial muscles have been used to create a new and environmentally friendly refrigeration technology.

Also this week, Physics World editors chat about a breakthrough in the study of the promising semiconductor cubic boron arsenide, a new technique that can reveal hidden consciousness in brain-injured patients, and a scary study about rocket stages that fall from the sky.

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