Timeline for Breathing on high oxygen world. What can be done to stop humans from dying?
Current License: CC BY-SA 4.0
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23 events
| when toggle format | what | by | license | comment | |
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| Oct 4, 2021 at 15:58 | comment | added | FuzzyChef | Yeah, I missed the note about the higher pressure entirely, it's not clearly spelled out. | |
| Oct 4, 2021 at 13:43 | comment | added | J... | @FuzzyChef Oxygen toxicity kicks in at an O2 partial pressure of about 0.3bar. Being a super-earth with a 1.55bar atmosphere (denser than Earth), it's 4% of the composition plus and additional 55% due to the higher ambient pressure. Total O2 partial pressure on OP's planet is 0.249*1.55=0.386bar, which is almost 30% higher than the oxygen toxicity threshold for humans. The question should probably include these details. | |
| Oct 4, 2021 at 10:11 | comment | added | TheDyingOfLight | Oxygen doesn't really get above 0.35 atm in an atmosphere. Above that the increased flammability of, well everything, regulates the oxygen content down. Maybe having more of an inner gas in the atmosphere could allow you to have more oxygen, as this would decrease the viciousness of fire, but this will only be a marginal effect. | |
| Oct 4, 2021 at 0:26 | comment | added | FuzzyChef | Er, only 4% more oxygen? I don't understand why that would make much of a difference. | |
| S Oct 3, 2021 at 16:33 | history | suggested | Kat | CC BY-SA 4.0 |
fixing typos
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| Oct 3, 2021 at 15:55 | review | Suggested edits | |||
| S Oct 3, 2021 at 16:33 | |||||
| Oct 3, 2021 at 14:26 | comment | added | Jan Hudec | Oxygen is not toxic under the conditions you give. 1.55 bar × 24.9% = 0.396 bar, while the article you linked says “Lambertsen concluded in 1987 that 0.5 bar (50 kPa) could be tolerated indefinitely.” | |
| Oct 2, 2021 at 22:46 | comment | added | LSerni | If I remember correctly those are more or less the conditions on Larry Niven's Plateau. Colonists there lessened the problem by living high on a plateau. It's been a long time since I read A Gift from Earth though. | |
| Oct 2, 2021 at 21:24 | answer | added | fraxinus | timeline score: 18 | |
| Oct 2, 2021 at 20:13 | answer | added | PcMan | timeline score: 6 | |
| Oct 2, 2021 at 19:55 | history | edited | Seraphim | CC BY-SA 4.0 |
added 613 characters in body
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| Oct 2, 2021 at 19:55 | answer | added | andrew g | timeline score: 3 | |
| Oct 2, 2021 at 17:49 | comment | added | Demigan | @L.Dutch would the specification of oxygen amount change the answers? I would have expected a request for more clarity on how the answers are judged as currently there doesnt seem to be a way to differentiate between any of the (bio-altering) answers and pick the best. | |
| Oct 2, 2021 at 14:53 | history | became hot network question | |||
| Oct 2, 2021 at 13:51 | comment | added | Adrian Colomitchi | Just burn some candles in front of your mouth ;) | |
| Oct 2, 2021 at 13:35 | comment | added | Darth Biomech | some space missions had atmosphere of pure oxygen, and were doing just fine. So your world needs to just have lesser or equal to Earth's atmospheric pressure. | |
| Oct 2, 2021 at 11:21 | review | Close votes | |||
| Oct 3, 2021 at 5:22 | |||||
| Oct 2, 2021 at 9:49 | answer | added | vinzzz001 | timeline score: 8 | |
| Oct 2, 2021 at 7:56 | answer | added | Demigan | timeline score: 9 | |
| Oct 2, 2021 at 7:53 | answer | added | David | timeline score: 5 | |
| Oct 2, 2021 at 7:10 | answer | added | L.Dutch♦ | timeline score: 7 | |
| Oct 2, 2021 at 7:05 | comment | added | L.Dutch♦ | Unspecified: how much more oxygen is present? | |
| Oct 2, 2021 at 6:53 | history | asked | Seraphim | CC BY-SA 4.0 |