[Fineus]

an0n... you scare me

As for nuke building, didn't some guy build a fully functional nuclear reactor in his garage? I mean on a very small scale of course but it was still the real deal. People out there obviously have the brains enough to do this kind of thing.

[karajorma]

A nuclear reactor is much easier to build because you don't need to weaponise the uranium.

That's the hardest step from what I've heard.

[Singh]

Getting the stuff will be difficult, but actual assembly shouldnt be hard.....
Although I do remember reading somewhere on how to make a home-made Railgun.......now THAT would be havoc

[vyper]

My friends in high school wanted to do that for their SYS Physics module (final year). Unfortunately they discovered to actually make it work like they wanted they required a small well-contained quantum singularity.

Understandably they changed their project.

[an0n]

I thought the critical mass for Uranium was a 10kg sphere?