Shape memory isn't new. Most thermostats have this feature. Maybe they have found a new use for shape memory by converting waste heat into a form of mechanical energy, which can be used in other forms.
Raymond
Raymond
GM Seeks Patents To Harvest Vehicle Engine Heat
GM is hoping to increase the efficiency of their combustion engine cars by recapturing some of the emitted heat. The post below shows how they are thinking of doing this. Short answer: shape memory materials that change shape at different temperatures.
http://www.techperse.com/2011/05/gm-seeks-patents-to-harvest-vehicle.html
http://www.techperse.com/2011/05/gm-seeks-patents-to-harvest-vehicle.html
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