this post was submitted on 09 Apr 2024
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Science Memes

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[–] Voyajer@lemmy.world 21 points 7 months ago* (last edited 7 months ago) (4 children)

All power generation is either solar or 'make thing spin', unless we're including RTGs and Piezoelectrics.

[–] rainynight65@feddit.de 3 points 7 months ago (1 children)

But not all electricity generation is based on boiling water. Wind, hydro and tidal don't need to generate large amounts of heat to make steam that spins a turbine, they just use natural movement to do so.

[–] Voyajer@lemmy.world 2 points 7 months ago

Yes, make thing spin

[–] skillissuer@discuss.tchncs.de 1 points 7 months ago (1 children)

All of these are in some way heat engines

[–] herrvogel@lemmy.world 5 points 7 months ago (1 children)

Yeah but those heat engines don't rely on spinning things inside a magnetic field. Heat on one side, less heat on the other side, and you have current. No motors.

[–] skillissuer@discuss.tchncs.de 3 points 7 months ago (1 children)

even photovoltaics are heat engines in broad definition

[–] herrvogel@lemmy.world 4 points 7 months ago

We're all heat engines on this blessed day if you broaden the definition enough.

[–] wewbull 1 points 7 months ago (1 children)
[–] Voyajer@lemmy.world 1 points 7 months ago

That's the principle used by RTGs right?

[–] Steve@startrek.website 0 points 7 months ago (1 children)
[–] Turun@feddit.de 3 points 7 months ago

Yes? Makes things spin.