ELI5, why can’t we convert sound to electrical energy for use? I know microphones convert sound to electrical signals but why is producing energy from waste sound not viable?
In: Physics
To give you a sense of scale.
The speakers at a heavy metal concert in a stadium need 15,000 Watts of power.
If we somehow collected all that energy, you would be able to cover the average power consumption of an electric car on EPA’s Highway test schedule: 14,000 W.
So there isn’t a whole lot of power.
There aren’t a whole lot of natural phenomenon that are louder than a concert by Slayer over a long period. And none where it wouldn’t be easier to just tap the source of the sound directly, rather than collecting the energy from the sound.
Also the power is spread out over a wide area, so we are unlikely to get all of it.
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