The energy expansions of evolution (2017)

Re:The energy expansions of evolution (2017) by jolmg on Friday February 07, 2020 @12:15PM (#22268220)

> except for a comparatively little bit of radioactively decaying material inside the earth, and some tidal forces

There's also geothermal energy.

EDIT: I erased what I said about tidal forces. I thought it referred to all currents in the ocean, but it specifically refers to the periodic pull the moon has on the Earth, to greater effect, on its water.

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Re:The energy expansions of evolution (2017) by trenchgun on Friday February 07, 2020 @12:21PM (#22268309)

Geothermal comes from radioactively decaying material. Geothermal is powered by naturally occuring fission. https://blogs.scientificamerican.com/observations/nuclear-fi...

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Re:The energy expansions of evolution (2017) by jolmg on Friday February 07, 2020 @12:34PM (#22268449)

I didn't know that most geothermal energy was from fission, but as the article says, not all geothermal energy comes from fission. There's also the release of heat as the outer core solidifies into the inner core. That's what I previously thought that most geothermal energy was.

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Re:The energy expansions of evolution (2017) by beerandt on Friday February 07, 2020 @12:38PM (#22268501)

Only about half.

The rest is likely residual from gravitational and tidal friction/compression and possibly other unknown sources.

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