Happy Hippy wrote:
PD wrote:
Happy Hippy wrote:

PD wrote:

Happy Hippy wrote:


Lloyd Parker wrote:


In article ,
Happy Hippy wrote:



Sam Wormley wrote:



Happy Hippy wrote:




The only question is
'Whence the spin?'
The answer:
The Universe is spinning.


There is plenty of spinning going on *within* the universe, but the
universe as a whole....

Assuming the inflationary scenario is correct, one would expect any
universal rotation to be extremely small.

Some Papers involving "Rotation of the Universe"



http://www.google.com/search?q=%22ro...%3AarX iv.org



Yes, there is lots of spinning in the Universe.
The Universe continues at larger and smaller scales infinitely.
But the scale we are concerned with
is the next up from Black Holes.

Consider the neutron star; collections of electrons
melded to protons fall back into the BH to be spun
back up into plasma, stuff of stars.

What is this Black Hole? It is itself a nucleus
composed of protons and neutrons. It is spin.


No. There are no protons and neutrons on a BH. It is a singularity. Zero
volume, infinite density.


hahaha



Where did it get its spin?


From the spinning star that collapsed. Conservation of angular momentum.

Which star was that?
Is there a *preferred* star that collapses and then
becomes the central BH of each galaxy?
After this preferred star collapses then no
more stars collapse to form BHs...ever? Why?


I don't know why you would think that. Just because a galaxy has a Big
Old Black Hole in the core does not mean that there are no other black
holes in the galaxy.


Why wouldn't there be?

So why are they only seeing one at
the center of spiral galaxies?


The one at the center of a galaxy did not come from the collapse of one
star necessarily. These typically have a mass of thousands to millions
of suns, which means that several black holes near each other coalesced
or that the black hole consumed a large number of stars (some of which
would have collapsed into a black hole and some of which would not
have) or both.


Stars are collapsing ALL the time.
Where are all these black holes?


In the arms of the spiral galaxy there are some that haven't been
sucked into the big one in the middle.


On the other hand, if spiral galaxies
are atoms and ellipticals are molecules
the former will have one at the center
and the latter more than one.


You'll note that the protons in atoms and the atoms in molecules do not
coalesce the way that black holes do. There goes that model!

You got it backwards again, PD.
Hint: we *see* that "the protons in atoms and the atoms in molecules do
not coalesce". OK so far.
Now.
"(T)he way that black holes do."
Hmm. Are you saying we have seen this?
Because if we have, then you're right.

Two comments:
a) It is strongly suspected that gamma ray bursts are precisely the
coalescence of black holes.
b) It is known the *single* highly massive object in the core of the
galaxy *cannot* be due to the collapse of a single object. There are no
observed precursors (stars with masses of tens of millions of solar
masses) that would collapse into a black hole.


You see, I'm saying that BHs do what atomic nuclei
do.

However, you might have to watch carefully for
a fairly extended period to see BHs coalescing.

John
Galaxy Model for the Atom
http://users.accesscomm.ca/john/