New to the forum, but I'm trying to resolve an idea (and annoyance, but that may be caused by my own ignorance) I've had for quite some time. Whenever I see or read something on black holes, the common attribute assigned to them is that their gravity is so strong, "not even light can escape". My problem is when you consider the definition of color. An object's color is determined by the wavelength of light which is reflected. So white reflects all wavelength photons and absorbs none, while black reflects none and absorbs all.
If in a black hole no light can escape, then it must be absorbed into the singularity. If a Styrofoam ball is painted back, it absorbs - or doesn't allow any photons to escape. So how is it that this statement is an attribute to describe strong gravity (or density)? A Styrofoam ball has very little gravitational attraction, yet no light can escape it if its black in color!