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From New Scientist - Latest Headlines:
New ways of turning heat into sound waves - and then into electricity - may be the next step toward a practical new source of alternative energy.
Scientists have known for decades that they can turn heat into sound using simple devices called acoustic heat engines. But this week a team of University of Utah researchers plan to show they've succeeded in miniaturising and optimising the devices, which then turn the sound into usable electricity.
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Re: Mini Heat Harvesters Could Be New Energy Source
