colliding galaxies?
S D Rodrian
bw...@webtv.net (Bob Wullenwaber) wrote:
> If the universe has been expanding
> for some 15 or so billion years from
> the "big bang"---How to things manage to collide?
Very rarely....
1) The galaxies are not equidistant
from each other. This means that gravity
will always pull then in one direction
more than in all others (mostly).
This can really cause a chaotic
landscape in the cosmos (the latest findings
tell us that, at least in the local regions
of the universe, the galaxies seem to be
spread out in a soap-bubble-like distribution
with huge empty areas surrounded by "reams"
of galaxy concentrations).
2) Of importance (?) to us (in the Milky
Way Galaxy) is that the Andromeda Galaxy
is headed our way... and a few hundred
million years from now the two galaxies
must crash! However, stars are so distant
from each other that it's more than possible
that the two galaxies will pass through
each other with no more than one single
collision between any of their stars (and
with our luck it'll be ours... unlucky because
we'll absolutely certainly felicitously be
extinct by then & miss the sight of them
passing through each other, probably exchanging
a few stars, after which our pretty spiral
Milky Way Galaxy will probably de-spiral
and become a totally messy mess--But
things change: Watchagonnado?).
3) And, by the way, the universe is NOT
"expanding" but "imploding." Visit thou:
And be enlightened.
S D Rodrian
web.sdrodrian.com
sdrodrian.com
music.sdrodrian.com
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Andrew
are no longer moving apart from the others in the cluster, and in fact
have quite a tendancy to interact.
S D Rodrian
"Stephen Uitti" <sui...@ford.com> wrote:
>
> "S D Rodrian" <SDRo...@mad.scientist.com> wrote in message
> news:91ab61$h1u$1...@nnrp1.deja.com...
> > In article <2796-3A...@storefull-264.iap.bryant.webtv.net>,
> > 2) Of importance (?) to us (in the Milky
> > Way Galaxy) is that the Andromeda Galaxy
> > is headed our way... and a few hundred
> > million years from now the two galaxies
> > must crash!
>
> (4*10**9) years. That's about when the Sun
> runs out of fuel.
Oh, "billion" !!!!!! (What a relief:
For a minute there I thought it was millions.)
Thank you for being such a straight man.
> > we'll absolutely certainly felicitously be
> > extinct by then
>
> We don't get off the hook that easy.
>
> Though individual species of sharks have
> been around for only millions of years,
> sharks in general have been around for
> hundreds of millions of years. Though
> homo sapiens will be long gone, species
> descending from homo sapiens could
> survive. No doubt, they'd be able to watch
> the show.
Sir: We have NOT only ceased evolving
as a species but we are actually de-evolving
even as I speak (I'm speaking to my dog now).
Even H.G.Wells knew a hundred years ago
that some time in the future our descendants
will split into two separate species:
One of predators, the other one lambs.
The predators, as all men eventually do,
will drive the lambs to extinction
and then evolve into brutes at the level
of the present homo sapiens sapiens
and then finally indulge in a nuclear war
after which rodents will inherit the earth
and, after about 65 million years or so,
they'll evolve into the Whopeople in the Grinch
and nobly accept the monster which might
survive from the (almost) extinct species
of apes... whose existence Who paleontologists
are convinced were primitive proto-Whos
without knowing they really descend
not from apes/monkeys like us but from rats.
Lucky they!
S D Rodrian
web.sdrodrian.com
wisdom.findhere.org
sdrodrian.com
re:
> They will have to have solved the problem
> of picking up the Earth biosphere and
> replicating it elsewhere.
>
> > [galaxies] passing through each other,
> > probably exchanging
> > a few stars, after which our pretty spiral
> > Milky Way Galaxy will probably de-spiral
> > and become a totally messy mess
>
> The Milky Way is currently eating the
> Large Megellanic Cloud. Perhaps it
> is making the Milky Way into a barred
> spiral. Hardly a mess.
>
> Current computers are good enough
> to give us a crude idea what may happen.
Tom McWilliams
> 2) Of importance (?) to us (in the Milky
> Way Galaxy) is that the Andromeda Galaxy
> is headed our way... and a few hundred
> million years from now the two galaxies
> must crash! However, stars are so distant
> from each other that it's more than possible
> that the two galaxies will pass through
> each other with no more than one single
> collision between any of their stars (and
> with our luck it'll be ours... unlucky because
> we'll absolutely certainly felicitously be
> extinct by then & miss the sight of them
> passing through each other, probably exchanging
> a few stars, after which our pretty spiral
> Milky Way Galaxy will probably de-spiral
> and become a totally messy mess--But
> things change: Watchagonnado?).
True, but the rapid star-formation caused by the crashing of the two
galaxy's dust and gas will raise a lot of havoc. Super-large stars (and
hence, super large supernovae) will be quite common for a short time, on
a galaxy time scale.
> 3) And, by the way, the universe is NOT
> "expanding" but "imploding." Visit thou:
> http://web.sdrodrian.com
Like I said, I found it rather broken up and chaotic; not a well
presented model. Further, you don't offer much in the way of tests for
your model, a serious criticism, especially since you quote Occam on the
top of the page.
It also seems to assume, as does the Big Bang Theory, that red-shifting
is due to recession-velocity, rather than, for example, the Zeeman
effect. There is some evidence that red-shifts are quantized, which
supports the Zeeman effect...unless you happen to know of an explanation
for quantized recession velocities...
-Tm
--
* . * '^
,.. " . *
,
' Tommy Mac