This Polymer Film Flexes Like an Artificial Muscle

This polymer film is expanding and contracting like a muscle, and looks pretty alive doing it, but the energy is coming from water vapor, not black magic. Go figure. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/H6wmt1Rz5VY/this-polymer-film-flexes-like-an-artificial-muscle

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