Science Memes

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Hooooooooooooooooooot (files.catbox.moe)

submitted 8 months ago by [email protected] to c/[email protected]

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[–] [email protected] 9 points 8 months ago* (last edited 8 months ago) (2 children)

I like piezoelectrics and kinetic generators. The only two methods of generating electricity I know of that don't involve steam other than solar panels.

At least, I think they're different... Is a standard copper wire+magnet generator pizeoelectric? Or is it simply the operation is similar in that you generate electricity from moving things together? Like the difference between tiny little things in your shirt that generate electricity as you move around vs those flash lights you shake to charge.

[–] [email protected] 8 points 8 months ago* (last edited 8 months ago) (2 children)

Piezoelectric effect is when you vibrate certain crystals and they give off electricity. It's also reversible. You can feed them electricity to generate sound. The beep-boop sound from small electronic devices is usually from a piezo speaker, because they're dirt cheap.

You don't get significant amounts of power out of it, though.

[–] [email protected] 4 points 8 months ago* (last edited 8 months ago)

Yeah it’s quartz lol

Also photovoltaic is reversible as well! Put light in get current out, put current in, get light out. But the diodes that get good light for the currents we use are shit for generating the current we like from the light we have and vice versa. Also! Most diodes are these types! That’s why we make their casing black, otherwise the light will interfere with computation!

[–] [email protected] 1 points 8 months ago* (last edited 8 months ago) (1 children)

Yeah. The one thing I ever saw that has me excited for a product that could exist, is that they can power a simple OLED display. And since an OLED display can be paper thin, they could put one in a t-shirt and you could have an animated design on your shirt instead of just a static picture. And that would be dope.

Of course, you'd need more than just the display, and i don't think the little generators that can be sewn into a shirt would be enough to power the computing device that would be necessary to drive the animation for the display.

[–] [email protected] 1 points 8 months ago (1 children)

and then you also have to find ways to wash this shirt without ruining the electronics of it

[–] [email protected] 1 points 8 months ago

Dry cleaning.

[–] [email protected] 6 points 8 months ago

They’re different. The piezoelectric effect converts pressure to charge. However steam is just kinetic with an extra step