From: Zardoz ®	04/11/2001 19:34:58
Subject: re: COSMOLOGY FAQ	post id: 484065
If a black hole could hypothetically be spun up fast enough, would it get to a state where the force that holds it together would not be able to provide the centripetal force to stop it from flying apart? From: B.C. ®. I would say no.. Reason, if I remember Thorne correctly, as a black hole spins, it creates a spinning of the space/time continuum around the hole, or frame dragging. also pulsations could be set up and so i would say that the frame dragging and pulsations would be getting energy from the spin of a black hole, so keeping it at a certain level What can add instability to a black hole is any pulsations it experiences through a collision. Any pulsations are extracting energy from the spin of the black hole, but at the same time radiating it away as gravitational waves. The rate at which they radiate energy is always greater than what they extract from the holes spin, consequently the pulsations will eventually die out.