---
title: Why Is It So Difficult to Make a Nuclear Weapon? — HIGH T3CH
url: https://hight3ch.com/why-is-it-so-difficult-to-make-a-nuclear-weapon/
date: 2014-03-20
---

# Why Is It So Difficult to Make a Nuclear Weapon?

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.