with the number of nuclear weapons in the world now, and how old a lot are, how is it possible we’ve never accidentally set one off?

Question

Title says it. Really curious how we’ve escaped this kind of occurrence anywhere in the world, for the last ~70 years.

In: Engineering

Answer 1

We’ve avoided it [by pure luck](https://en.wikipedia.org/wiki/1961_Goldsboro_B-52_crash). Since then the arming mechanisms have evolved.