In a controlled reaction you assemble uranium in a way that allows a very stable, very steady reaction. The heat gets produced, then is used to boil water and produce steam, and that steam then produces electricity through turbines, same as any other electrical generating plant. There's nothing very exotic really about it. The trick in all of it is to assemble that uranium in a manner that is the safest possible, and uses the resource most efficiently. And you want to see the waste from it minimized and be as safe as possible.