hmm, maybe we can make a backpack version of this @adammunich @ThePsyence @pscheyer @otherlab @BoredElonMusk what do you think?https://twitter.com/paulg/status/1254035442128781312 …
I have this idea to design a compound Ranque-Hilsch vortex tube and just precipitate it out, that means you can use all the compressors that are already around and you don't need any additional moving parts. Alternatively you can use liquid nitrogen and condense it.
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Why not use capillary tubes like the nitrogen separation membranes? Up to 50% of in a single pass of air.
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50% o2 sorry
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We could definitely do this