What is the difference between nuclear and theoretical physics?

Nope, its fine. There are three "sizes" microscopically small tiny particles - for which Newtonian mechanics no longer works, and we need to apply quantum physics: (quantum physics deals with quantum mechanics and the odd behavior of very, very, very tiny things like atomic particles. "normal size" - for which quantum effects are so small we can use Newtons laws and ignore relativistic effects; and MASSIVE - or moving VERY fast - where we must take relativistic effects into account.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.