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A comment on Humans can't endure temperatures and humidities as high as previously thought. Parent comment

Re:Humans can't endure temperatures and humidities as high a... by titzer on Wednesday June 29, 2022 @09:38AM (#31919943)
Heatpumps are a thing, it's just that evolution never stumbled on them.
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Re:Humans can't endure temperatures and humidities as high a... by mmastrac on Wednesday June 29, 2022 @10:10AM (#31920347)
Evolution seems to prefer proteins that denature at higher temps instead:

https://en.wikipedia.org/wiki/Hyperthermophile

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Re:Humans can't endure temperatures and humidities as high a... by laci37 on Wednesday June 29, 2022 @09:49AM (#31920073)
I don't think there are any coolants that would be appropriate for life's temperature ranges at the right pressures that can be synthesized biochemically.
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Re:Humans can't endure temperatures and humidities as high a... by 323 on Wednesday June 29, 2022 @09:58AM (#31920173)
People are working on propane biochemical synthesis: https://pubmed.ncbi.nlm.nih.gov/25181600/

I don't know about the other part (temperature/pressure).

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Re:Humans can't endure temperatures and humidities as high a... by warble on Wednesday June 29, 2022 @01:55PM (#31923548)
Sweat is an open heatpump loop. You're intending a closed loop of course in your comment, but same process.
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Re:Humans can't endure temperatures and humidities as high a... by titzer on Wednesday June 29, 2022 @03:51PM (#31924926)
It isn't though, because powered mechanical compression and decompression is what allows a heat pump to outperform the inherent thermodynamic limit of evaporative cooling.
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Re:Humans can't endure temperatures and humidities as high a... by eternityforest on Wednesday June 29, 2022 @04:35PM (#31925408)
Is that possible? Could there be a biochemical equivalent of a Peltier junction?
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