Astrophysics question

Since they can determine using redshifts whether an
object is moving away or towards us, I don't suppose
they have any idea what "direction" the origin (big
bang point of origin) is? I guess it's something like
trying to see the curve of the Earth from sea level.
-Rich

RichA wrote:

Since they can determine using redshifts whether an
object is moving away or towards us, I don't suppose
they have any idea what "direction" the origin (big
bang point of origin) is? I guess it's something like
trying to see the curve of the Earth from sea level.
-Rich

The movement of galaxies should (mainly) be seen as an effect of the
universe in itself expanding, not as if the galaxies are moving away from
each other in a fixed space. This means that wherever you are in this
universe, galaxies will move away from you.
Conclusion would be that the point of origin is here, there and everywhere.
Or, there is no such point.

If you don't understand this, don't worry. No one really does

RichA wrote:
Since they can determine using redshifts whether an
object is moving away or towards us, I don't suppose
they have any idea what "direction" the origin (big
bang point of origin) is? I guess it's something like
trying to see the curve of the Earth from sea level.
-Rich


No Center (*every* point is the Big Bang point of origin)
http://www.astro.ucla.edu/~wright/nocenter.html

Also see Ned Wright's Cosmology Tutorial
http://www.astro.ucla.edu/~wright/cosmolog.htm
http://www.astro.ucla.edu/~wright/cosmology_faq.html

WMAP: Foundations of the Big Bang theory
http://map.gsfc.nasa.gov/m_uni.html

WMAP: Tests of Big Bang Cosmology
http://map.gsfc.nasa.gov/m_uni/uni_101bbtest.html

On Sun, 03 Apr 2005 07:12:48 -0400, RichA wrote:

Since they can determine using redshifts whether an
object is moving away or towards us, I don't suppose
they have any idea what "direction" the origin (big
bang point of origin) is? I guess it's something like
trying to see the curve of the Earth from sea level.
-Rich

There is no three-dimensional origin of the Big Bang, so we can't see a
direction. Indeed, the fact that we don't see any bias in redshift with
direction is one of the important pieces of evidence supporting the Big
Bang theories in the first place.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

On Sun, 03 Apr 2005 12:55:34 GMT, Sam Wormley
wrote:

RichA wrote:
Since they can determine using redshifts whether an
object is moving away or towards us, I don't suppose
they have any idea what "direction" the origin (big
bang point of origin) is? I guess it's something like
trying to see the curve of the Earth from sea level.
-Rich


No Center (*every* point is the Big Bang point of origin)
http://www.astro.ucla.edu/~wright/nocenter.html

Oh well, at least they can determine the stucture of the observable
universe. I think I read in Sky and Telescope that the sound waves
from the Big Bang are responsible for the spacing of galaxies.
-Rich

RichA wrote:
On Sun, 03 Apr 2005 12:55:34 GMT, Sam Wormley
wrote:


RichA wrote:

Since they can determine using redshifts whether an
object is moving away or towards us, I don't suppose
they have any idea what "direction" the origin (big
bang point of origin) is? I guess it's something like
trying to see the curve of the Earth from sea level.
-Rich


No Center (*every* point is the Big Bang point of origin)
http://www.astro.ucla.edu/~wright/nocenter.html


Oh well, at least they can determine the stucture of the observable
universe. I think I read in Sky and Telescope that the sound waves
from the Big Bang are responsible for the spacing of galaxies.
-Rich

Here's another good read: News of the Universe
http://www.astro.ucla.edu/~wright/cosmolog.htm#News

"I don't suppose
they have any idea what "direction" the origin (big
bang point of origin) is?"

Yes, they do! the big bang happens to have the interesting property
that space and time began with the BB, therefore everywhere is
the center of the BB! Everywhere is moving away from everywhere
else with rather similar geometry. This is the expansion of space-time

The issue of directionality must wait until it is proven conclusively
there is
none. Then it will become a hot issue. Stayed tuned as Wormely cranks
his
magic search engine in search of truth.
GL






RichA wrote:

Since they can determine using redshifts whether an
object is moving away or towards us, I don't suppose
they have any idea what "direction" the origin (big
bang point of origin) is? I guess it's something like
trying to see the curve of the Earth from sea level.
-Rich

On Tue, 05 Apr 2005 01:16:16 -0500, fdjndwifhn wrote:

The issue of directionality must wait until it is proven conclusively
there is
none. Then it will become a hot issue.

Nothing can ever proven conclusively. But in this case, the evidence for
a lack of directionality is very, very strong.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com