Recent content by JohnBarlow

  1. J

    Graduate What is the ratio of radii for a black hole and steel ball in equilibrium?

    My first post here, hope to have more... I have an idea/question probably brought about by watching too much Discovery Channel and I don't know who to ask, but I found this place so here goes. Consider a black hole of radius r at the centre of a steel ball of radius R, where R>>r. I am not...