Why Are There Galaxies?

OG I've also read that,but I feel something is missing. Galaxies came
very early(after the BB) To me that means the blue print of the
universe had to come from the BB. The big bang had the blue print of the
light elements,and the gas clouds were just hydrogen and helium. They
were not homogenized through out space. Gravity must have placed these
dense clouds here and there,and not just one big cloud filling space.
Then we have galaxies expanding away from each other for billion of
years. Can we estimate how close they were together 8 billion years ago?
Bert

"G=EMC^2 Glazier" wrote in message
...
OG I've also read that,but I feel something is missing. Galaxies came
very early(after the BB) To me that means the blue print of the
universe had to come from the BB. The big bang had the blue print of the
light elements,and the gas clouds were just hydrogen and helium. They
were not homogenized through out space. Gravity must have placed these
dense clouds here and there,and not just one big cloud filling space.
Then we have galaxies expanding away from each other for billion of
years. Can we estimate how close they were together 8 billion years ago?
Bert

Yes,
work it out yourself.
It's not rocket science!

"G=EMC^2 Glazier" wrote in message...
...

Hi Painius. Well I can always count on you to create great interest to
my posts. That was a great picture. Is it realy a picture of our galaxy?
Painius I would not mind waiting that 200,000 years to get to are other
side of the hub. Its my great curiosity. My proplem is " My life is
going into the twilight zone" and that could be what the night sky would
be like if the bright stars (100millions of them) of the hub could come
shinning through. Bert

Thanks, Bert. That picture was taken in the infrared
by COBE, the Cosmic Background Explorer, a satellite
from Goddard designed to study the remnant radiation
from the origin of the Universe...

http://lambda.gsfc.nasa.gov/product/cobe/

The picture of our Galaxy Central was a surprising and
delightful result of this study.

Say "hi" to Rod Serling for me, and i have a sillyass gut
feeling that people are underestimating the brightness
of our Galaxy Central by several increments. "Sillyass"
because there is unfortunately no way to be certain.

And i know just as sure as i know how to pound these
keys that the hub of the Milky Way Galaxy is bright
enough to rival the Sun!

happy days and...
starry starry nights!

--
Everytime you listen to a song,
And you hear a voice who likes to sing
How your lovin' eyes are everything,
Think of me just singing right along.

Close your eyes and listen carefully,
Hear me sing my love forever true,
Every word of love is meant for you,
Every song a sing-a-long from me.

Paine Ellsworth

We have to realize that rotary motion(angular) and gravity shaped the
universe and we see that in the shape of galaxies. Flat galaxies lots
of overal rotation (like ours). Oval-shaped galaxies (elliptical) have
no overal rotation. I see a flat universe. Bert

In message
, Painius
writes

Say "hi" to Rod Serling for me, and i have a sillyass gut
feeling that people are underestimating the brightness
of our Galaxy Central by several increments. "Sillyass"
because there is unfortunately no way to be certain.

And i know just as sure as i know how to pound these
keys that the hub of the Milky Way Galaxy is bright
enough to rival the Sun!


You're being unduly influenced by the end of "The Empire Strikes Back",
and by all those pictures that show the centre of a galaxy as dazzling.
Don't forget that the first is fiction and the second is the result of
integrating the light over minutes to hours.
OTOH, consider the view from a star about a thousand light years from
the centre. I suspect that would be truly spectacular, though I'll leave
it to an artist like Ron Miller to work out the details and do it
justice.
--
Rabbit arithmetic - 1 plus 1 equals 10
Remove spam and invalid from address to reply.

Flat Earth too, Bert?

"G=EMC^2 Glazier" wrote in message
...
We have to realize that rotary motion(angular) and gravity shaped the
universe and we see that in the shape of galaxies. Flat galaxies lots
of overal rotation (like ours). Oval-shaped galaxies (elliptical) have
no overal rotation. I see a flat universe. Bert

"Painius" wrote in message ...


Say "hi" to Rod Serling for me, and i have a sillyass gut
feeling that people are underestimating the brightness
of our Galaxy Central by several increments. "Sillyass"
because there is unfortunately no way to be certain.

And i know just as sure as i know how to pound these
keys that the hub of the Milky Way Galaxy is bright
enough to rival the Sun!


I would hope you type better than that Panius :-). No, it wouldn't
even come close to rivaling the sun's brightness unless, perhaps, if
you were observing the hub from, say, around 1000 light years or so of
the center. Even then, the brightness would be spread over a huge
area of the sky, so while you would see a *lot* of stars and much of
the sky would probably seem to be glowing, it wouldn't quite be like
having the sun up. The brightness of the core region can be quite
easily calculated based on infrared and radio studies, as well as
comparisons with the cores of other similar galaxies like M31. People
aren't significantly understimating the brightness by any means. Even
without dust in the way, 26,000 light years is a *long* way for light
to travel, and the inverse square law really takes its toll here.
Clear skies to you.

David W. Knisely
Prairie Astronomy Club: http://www.prairieastronomyclub.org
Hyde Memorial Observatory: http://www.hydeobservatory.info/

**********************************************
* Attend the 11th Annual NEBRASKA STAR PARTY *
* July 18-23, 2004, Merritt Reservoir *
* http://www.NebraskaStarParty.org *
**********************************************

Hi Painius That is so very true we can't tell how bright the hub of our
galaxy is. Its a good thing that infrared can go through all that space
dust. It does make sense to me that this dust would be thick and flat to
go with our frisbee galaxy. Painius what if we did not have this
dust shield,and lots of harmfull radiation hit the Earth? Maybe the dust
helped to create life on Earth. Having stars inside this hub that have
the radiation of millions of suns,and the hub has 100 million stars
makes this thinking not to far out. Having a blackhole in the center of
the hub must create a lot of angular motion. Bert

Hi Painius Just had this interesting thought. the stars that make up
the hub and have a 2.6 million solar mass blackhole at their center must
be revolving around it very fast. How fast is very fast? Lots of stars
must be falling through the event horizon every day. Stars of great mass
could be colliding(gut feeling thats true) To much stuff and angular
motion in a small area can cause choas. Bert

"G=EMC^2 Glazier" wrote in message
...
Hi Painius Just had this interesting thought. the stars that make up
the hub and have a 2.6 million solar mass blackhole at their center must
be revolving around it very fast. How fast is very fast? Lots of stars
must be falling through the event horizon every day. Stars of great mass
could be colliding(gut feeling thats true) To much stuff and angular
motion in a small area can cause choas. Bert


Bert,

If you have Adobe reader, you may find this
http://www.nature.com/cgi-taf/DynaPa...t_filetype=pdf

of interest. (Don't forget the link may get broken by my/your newsreader).


DaveL