No, nucleus. Atomic nucleus, very tiny little thing. Nuclear energy does derive from that field, but I don't work in weapons. [ Said with a hint of distaste left in his mouth, but he ignores it. Not something he even wants to think about now. ]

No offense taken. [ He smiles a little and shakes his head. ] Physics isn't for everyone. Tell you what, if I ever set up some kind of fun experiment, I'll let you know. You can drop by if you want. [ Or he could take part in an experiment, even. What with the speeds he can pull off... ]