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Hooooooooooooooooooot (files.catbox.moe)

submitted 4 months ago by [email protected] to c/[email protected]

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[–] [email protected] 40 points 4 months ago* (last edited 4 months ago) (5 children)

Piezoelectricity is the only other I can really think of. But it's not like we are out here smacking crystals with hammers to make power.

[–] [email protected] 10 points 4 months ago (2 children)

Why not, though?

On a serious note: that's exactly what we're doing with lighters. At least some of them use piezo elements and not the sparkly wheel thingy to ignite the gas. And it's real fun to zap yourself with it.

[–] [email protected] 5 points 4 months ago

Yeah, it was a fun journey of learning to look into it. It’s quartz btw. Very piezoelectric and extremely common.

[–] [email protected] 3 points 4 months ago

The conversion rate isn't great.

There were talks of using them in sidewalks, but it doesn't really make much sense really. Piezo almost always only works as energy recovery, which isn't nothing but you will need the infrastructure which also isn't nothing.

[–] [email protected] 4 points 4 months ago

Give buskers the acoustic guitar with a link to the grid and every time they play they’ll generate a ton of electricity (in relative terms…)

Electro-Acoustic guitars use piezos to pick up the audio if you didn’t know

[–] Jyek 4 points 4 months ago

Wait a minute, what IF

[–] [email protected] 2 points 4 months ago* (last edited 4 months ago)

Even if we used piezo, the movement of the hammer would still have to come from some power source, which would still be the same sources like moving steam, water, or wind.

[–] [email protected] 1 points 4 months ago (1 children)

piezoelectricity is just simple electric motor

[–] [email protected] 2 points 4 months ago (1 children)

[–] [email protected] 1 points 4 months ago (1 children)

piezo crystal is electric motor. you input deformation of the crystal and get potential difference on opposite sides. other way around also works

[–] [email protected] 2 points 4 months ago (1 children)

Oh! Gotcha! Makes sense. Forgot about crystal vibrations for clockworks. Thanks!

[–] [email protected] 2 points 4 months ago

it's a special case there, because for frequencies in question mechanical quartz resonator has much higher Q than any electrical resonator you can practically build. that is, mechanical properties of piezo crystal stabilize voltage oscillations