All atoms higher than hydrogen come from stars. So in the end, everything is derived from fusion. Therefore, geothermal and fission can only exist because of nuclear fusion.
Comment on World now has five times more PV than nuclear power
booly@sh.itjust.works 1 week agoSo is biomass. And wind. And fossil fuels. And hydro.
In fact, I think only geothermal and fission aren’t fusion-based.
Wrufieotnak@feddit.org 1 week ago
MonkderVierte@lemmy.ml 1 week ago
Fossil fuel is by extension of extension. Fission by extension of extension of extension.
MouseKeyboard@ttrpg.network 1 week ago
Fission is based on the fusion that took place in ancient supernovae.
eleitl@lemm.ee 1 week ago
Neutron star collision. Supernova nucleosynthesis is also when fusion turns off.
JustZ@lemmy.world 1 week ago
Everything is stardust so it’s everything fusion based?
eleitl@lemm.ee 1 week ago
Heavier nucleosynthesis requires neutron star collisions, so not fusion-driven. Supernovas are also when fusion stops.
booly@sh.itjust.works 1 week ago
The kinetic energy in that stardust, and the gravitational potential energy of stardust pulling itself into tighter balls, doesn’t necessarily come from fusion. There’s all sorts of cosmological forces and energy out there, and I don’t think they all trace back to nucleii smushing together.
JustZ@lemmy.world 1 week ago
That’s true I suppose.
Greg@lemmy.ca 1 week ago
Tidal is also non fusion based
Reverendender@sh.itjust.works 1 week ago
Not with that attitude