We need a phlebotomist who’s good enough to draw venous blood without exposing it to any air & contrast it with arterial blood?
I find it easy to believe oxygen-depleted blood turns blue because I’ve seen anoxic *soils* so gleyed that they were about the shade of a robin’s egg. They turned grey as we watched, after we brought up the core.
Tony Vladusich (npub18zu…xdht) John Carlos Baez (npub1nf4…nqe4) TobyBartels (npub1x4d…6lp6)
clew
npub1j8…xzp4l
2025-10-21 17:07:45 UTC
in reply to nevent1q…zhqq
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wss://relay.momostr.pinkPublished at
2025-10-21 17:07:45 UTCEvent JSON
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