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Is it possible for sound to be turned into electricity? © iStock

Is it possible for sound to be turned into electricity?

Published: 05th November, 2016 at 14:00
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Ear-bursting volume can cause headaches and frequencies can shatter glass, but sound might not be as powerful as you think.

Asked by: Sam Tuttle, Leicester

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Sound is made up of vibrations, and as such is a source of energy that is capable of being converted into electricity. But while, say, a pneumatic drill sounds incredibly ‘powerful’ to us, that says more about how sensitive our ears are.

In reality, sound energy is far more dilute than the energy packed into sunlight, and thus very hard to exploit.


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Authors

Robert is a science writer and visiting professor of science at Aston University.

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