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Mon, 22 Jul 2024 19:24:49 +0200
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Martin Kostera
martin@libera.site
No to mě poser. 😮
Tmavý kyslík vzniká elektrochemicky na polymetalických konkrecích na dně moří. Bez fotosyntézy.
Takže se bude přepisovat učebnice vzniku života. A s těžbou konkrecí to taky zamává... 🤔
ScienceAlert
wrote the following
post
Mon, 22 Jul 2024 17:00:07 +0200
Mysterious 'Dark Oxygen' Discovered at Bottom of Ocean Stuns Scientists
https://www.sciencealert.com/mysterious-dark-oxygen-discovered-at-bottom-of-ocean-stuns-scientists?utm_source=flipboard&utm_medium=activitypub
Posted into Nature
@nature-ScienceAlert
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Kyslík
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Těžba
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Fotosyntéza
2
Michal Špondr
Donar
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4 comments
Mon, 22 Jul 2024 19:39:40 +0200
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xChaos
xChaos@f.cz
@martin
"The researchers found single polymetallic nodules produced voltages of up to 0.95 V. So when clustered together, like batteries in a series, they can easily reach the 1.5 V required to split oxygen from water in an electrolysis reaction."
hmm, cool. Můžeme těžit přírodní baterie :-)
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Mon, 22 Jul 2024 20:00:27 +0200
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xChaos
xChaos@f.cz
@martin
aha...
"In 2016 and 2017, marine biologists visited sites that were mined in the 1980s and found not even bacteria had recovered in mined areas. In unmined regions, however, marine life flourished," explains Geiger.
"Why such 'dead zones' persist for decades is still unknown. However, this puts a major asterisk onto strategies for sea-floor mining as ocean-floor faunal diversity in nodule-rich areas is higher than in the most diverse tropical rainforests."
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Mon, 22 Jul 2024 20:04:52 +0200
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Martin Kostera
martin@libera.site
@
xChaos
Mno...
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Mon, 22 Jul 2024 20:06:39 +0200
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xChaos
xChaos@f.cz
@martin
no, nemůžeme těžit. neměli bychom. no, začíná to dávat smysl, ale je to teda fakt úlet.
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