this post was submitted on 09 Apr 2025
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Science Memes

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[–] [email protected] -5 points 1 month ago* (last edited 1 month ago) (2 children)

Ask Hiroshima and Nagasaki.

In alphabetical order.

Edit: oops, those are fission, my bad

[–] [email protected] 16 points 1 month ago (4 children)

Those are fission. Fusion bombs don't fuse uranium. They use a fission bomb to fuse Lithium.

[–] [email protected] 3 points 1 month ago

For that matter, even the Nagasaki bomb ("Fat Man") didn't use Uranium at all - its fuel was Plutonium.

[–] [email protected] 2 points 1 month ago

Oh, they do, but not as the primary or secondary. You can wrap depleated uranium around the core to capture fast neutrons that are leftover from the rest of the process. Changing the number of layers is how you can dial in a desired yield.

[–] [email protected] 1 points 1 month ago

Damnit, you're right and I'm wrong!

[–] [email protected] 3 points 1 month ago (1 children)
[–] [email protected] 5 points 1 month ago

I stand corrected, because I done forgetted.