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Same applies to geothermal.
lava is really hot
use lava to boil water
use steam to turn a generator
free electricity!
Have we still not been able to progress past all power generation being "use water to turn a generator"? Humanity figured out the water wheel then just kept making it more complex.
How about "use air to turn a generator"? Now that's original. Or photovoltaics, I guess.
So I've tried starting a perpetual windmill and it made money on only fans but it turned out the be an electrical loss overall... Had to abandon that attempt, back to the drawling board, I think I messed up somewhere.
You know that windmills are kind of the opposite of fans? Try "only windmills" instead and it's not a
:.|:;anymoreSo I reversed the windmill to a helicopter, more views, still an overall electrical loss. Thanks for trying though. I might not be the best person for this job.
Guess I should start scouting for talent
We have! Thermoelectric generators that make electricity directly from heat exist, they're just often not very good compared to the spinny wheel.
We even use them to make nuclear reactors with no moving parts, which I think is really neat. They're used in places where maintenance or refueling is difficult or impossible, like space probes.
https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator
What about a piss wheel instead of a water wheel?