Birdwatch Note Rating
2023-09-17 10:17:00 UTC - HELPFUL
Rated by Participant: 9F1EBD7D7D1FACA76167AA85068E61C701A26D0E888FE618C109E5DACB4E4AB8
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Original Note:
as the photo clearly show, the sub is carrying cylinders clearly marked "compressed AIR", only 22%oxygen, no rebreathing system. Expired nitrogen, CO2 and unused oxygen bubbles away. Spacesuits carried pure Oxygen in a rebreathing closed circuit for 7 hours, not 22. https://en.wikipedia.org/wiki/Apollo/Skylab_spacesuit#Apollo_15-17,_Skylab_and_ASTP_Spacesuits
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