These 3 teenagers managed to build their nukes on their own by collecting americium from smoke detectors, thorium from camping lantern mantles, radium from clocks, and tritium from gunsights as nuclear materials.

https://en.wikipedia.org/wiki/David_Hahn

https://en.wikipedia.org/wiki/Taylor_Wilson

https://en.wikipedia.org/wiki/Richard_Handl

I, too, successfully built a nuclear bomb from scratch.

proof: https://www.youtube.com/watch?v=XwmHoWfwHiw [Embed] [Open] [Open] [Open]

Considering how Tanya was a Japanese business man in 2022 Japan, he must have read Wikipedia pages & widely available Nuclear Physicists' /Engineers’ thesis papers that explains how one can enrich radioactive materials and build a nuclear missile?

If he brought that 21st century knowledge back to 1914 Isekai pre-nuclear Germany, Tanya can recreate his own nukes using magic and Einstein’s formulas (E=MC^2) from PHD papers as shown in the latest manga chapters

Proof;
https://www.reddit.com/r/YoujoSenki/comments/n417wt/we_dont_need_atomic_bomb_now_when_we_have_tany/

Even North Korea was able to build Nuclear missiles using a box of 2nd hand scraps and old manuals provided by Pakistanis, China, and Russia.

If Anarchist cookbooks taught Laymen how to build Napalm, then Nuclear thesis papers can teach laymen how to build nukes from scratch.

Come on, what’s the problem? It’s not like we’re too dumb to build nukes, right? We all have high IQ.