this post was submitted on 17 Sep 2024
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Science Memes

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[โ€“] DogWater@lemmy.world 19 points 2 months ago (1 children)

Oxygen is so crazy that once microbiology in the ancient oceans started producing it, all life on earth nearly died. Like very nearly sterilized the earth.

[โ€“] UnderpantsWeevil@lemmy.world 9 points 2 months ago* (last edited 2 months ago)

At high concentrations, its still fucking awful for us. Easy to forget that the atmosphere is still only 21% Oxygen and 78% Nitrogen. Even setting aside the risks of fire and explosion at higher concentrations, this highly reactive substance degrades the nervous and musculature system.

You wouldn't want to wander around in a fully oxygenated environment for the same reason you wouldn't want to drive your car through a lake of gasoline.