is there a correlation between the rotating mass of a black hole and the rotation of the universe nearby?

Question

i asked this yesterday, if a black hole mass rotates then the planets spiralling into it should have a gradual increase in acceleration toward it. since we can measure velocity and light spectra this should be ascertainable.
at the bottom of the black hole it would rotate the fastest, as you move away the rotation of the spiral should be correlatable to the bottom based on the mass of the body. am i totally off base or what?

Answer 1

Okay, first of all, you have to remember that a black hole is just a giant mass compressed together into a very compact ball. We'll assume for simplicity that it forms a perfect sphere at the bottom; that sphere is what is actually rotating down at the center. Until you reach that center (by which time you're crushed into a fine pulp, by the way), you personally do not have any additional angular momentum than you had when you crossed the event horizon and started falling toward the center. It's much like landing on the moon -- if you were to approach it in a straight line, even though it is rotating in space, you would not suddenly speed up to one side -- your only rotational motion would be the moon itself rotating relative to you. The gravitational pull would still be from the center of mass, pulling you straight down.

The reason why matter would spiral into the mass is because they are caught in a decaying orbit -- the acceleration of the black hole's gravity causes their paths to bend inward toward the singularity. If something were going at the right speed (in a straight lint) at the right distance (quite far, really), the gravity could cause that object to actually turn into a stable orbit around the singularity and never fall into it. Things would behave exactly the same way even if it were a stationary black hole; the fact that it's spinning doesn't change that.

The spin of a black hole does have some odd properties, however -- from what I understand, the spin causes it to have two event horizons, between which is a region where you actually can travel in other directions that just straight down. This is a theoretical description of a wormhole, but it's still just speculation (and you'd STILL be squished like a grape long before you got there) Rotating black holes also have two photon spheres, where (just like the orbiting masses I talked about earlier), regions where the gravity is just right that a tangential photon of light will be pulled into an unstable orbit around the singularity.

Answer 2

Well, not totally, but why don't you do a little reading into the impact of magnetism, rather than gravitational impact.

http://tinyurl.com/lec3j

Answer 3

Yes.

Answer 4

just to make fun of the person answering before me, u would getting crushed or squished. u get 'torn apart' molecule by molecule,atom by atom. idiot