(urth) "been teaching literature for over 35 years"

[Jeffery Wilson]

On 9/9/2013 8:56 AM, Gerry Quinn wrote:
>
>
> From: Jeffery Wilson
>> On 9/9/2013 7:42 AM, Gerry Quinn wrote:
>> > It doesn't matter (in engineering terms) whether stuff that reaches the
>> > event horizon goes somewhere else or not (that's kind of the definition
>> > of an event horizon).  But an accretion disk outside the Schwarzschild
>> > radius is just standard dynamics for any super-condensed object.
>
>> What force acts on the matter to prevent it from following the usual
>> swarm of elliptical orbits instead of the disk?
>
> In a word, friction.  The matter would be gaseous in this case and
> particles could not swirl in independent orbits.  But even if it were
> composed of solid particles, they would soon collide, which would (1)
> heat the colliding particles (2) reduce their energy, and (3) set the
> colliding particles on closer trajectories than they were before.

But all the stuff inside the sun's already colliding and touching.

How is the axis and irection of rotation of the disk picked?

-- 
Jeff Wilson - < jwilson at clueland.com >
A&M Texarkana Computational Intelligence Lab
< http://www.tamut.edu/cil >