As far as I knew, the submarine air "metabolism" was chemical in nature: http://... | Hacker News

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		userulluipeste on Feb 3, 2015 \| parent \| context \| favorite \| on: Why We Should Build Cloud Cities on Venus As far as I knew, the submarine air "metabolism" was chemical in nature: http://en.wikipedia.org/wiki/Chemical_oxygen_generator#Uses

maxerickson on Feb 3, 2015 [–]

(At least some) Nuclear subs use electrolysis:

http://www.defenseindustrydaily.com/treadwell-supplies-oxyge...

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