I posted this to give an analogy on rotational forces that act on spinning objects. The question was, why do galaxies appear disc shaped when black holes suck matter in from all angles; not just the rotational equator. My reply was that galaxies are spinning, and may have a centrifical force that causes them to bulge at the outer edges arrising in a squashed sphere, or disc. It may not be the correct answer at all, in fact I don`t think it is. It was just a thought to ponder which has everything to do with the nature of black holes.