Re:Advanced Civilizations Could Be Indistinguishable from Na...
by littlestymaar on Thursday December 19, 2024 @04:14AM
(#42459762)
> Reduce means to pull a metal out of its oxide. This is way uphill energetically.
For iron (Fe2+) is about the same order of magnitude than getting organic matter of of CO2, which is what photosynthesis does, so it doesn't really sounds impossible. The main problem is that in an oxygen rich atmosphere, any metallic iron it would spontaneously get back to its oxide form pretty much instantly…
For iron (Fe2+) is about the same order of magnitude than getting organic matter of of CO2, which is what photosynthesis does, so it doesn't really sounds impossible. The main problem is that in an oxygen rich atmosphere, any metallic iron it would spontaneously get back to its oxide form pretty much instantly…