this post was submitted on 09 Jun 2024
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Famously, Oppenheimer and co worked out how close a nuclear bomb test would be to causing a chain reaction of nitrogen fusion in the atmosphere. They made a lot of worst-case-scenario assumptions and still came to the conclusion that no, a nuclear bomb test wouldn’t scour the surface of the world.

But let’s say the atmosphere was twice as dense as it is. Or ten times as dense. At what point would that calculation turn very, very scary?

Obligatory xkcd

Edit: man, seriously, most of the people ‘answering’ this question didn’t even read it.

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[–] phcorcoran@lemmy.world 1 points 2 months ago* (last edited 2 months ago) (1 children)

I don't know what chain reaction exactly they were thinking of, but from modern fusion research, I believe we can confidently say that the atmosphere would need to be interior-of-a-large-star-level dense, and even then I'm not sure you'd get nitrogen fusing with anything without a lot of hydrogen or helium around. Nitrogen-nitrogen fusion seems extremely implausible for sure

[–] chuckleslord@lemmy.world 2 points 2 months ago

Fusion of two nitrogen-14 nuclei and a hydrogen nucleus. That was the feared chain reaction, since both elements are abundant.

Source

[–] cm0002@lemmy.world 0 points 2 months ago (1 children)

I have no idea, commenting so I can remember to come back later

[–] saigot@lemmy.ca 1 points 2 months ago

Try the save post button next time