---
title: The Hardest Part of Making a Nuclear Bomb — HIGH T3CH
url: https://hight3ch.com/the-hardest-part-of-making-a-nuclear-bomb/
date: 2012-06-20
---

# The Hardest Part of Making a Nuclear Bomb

Bill explains that the hardest step is making the proper type of uranium. Weapons and power plants require uranium that contains a greater amount of the isotope uranium-235 than found in natural uranium, which is mostly uranium-238. He outlines the key difficulty in separating the two isotope: They have nearly identical properties. He explains the two key methods for separation: Gas diffusion and centrifuges.

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