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Here's something to ponder.
Topic Started: May 2 2005, 09:17 AM (841 Views)
somerled
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Admiral MacDonald RN
Fesarius
May 2 2005, 10:35 AM
No, as you cannot change the laws of physics. ;)

No changes to the laws of physics required.
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somerled
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Admiral MacDonald RN
gvok
May 2 2005, 11:06 AM
Why did you put "expansion" in quotes?

What is the universe expanding into anyway?

Actually the universe is not expanding , it is space that is expanding.
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somerled
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Admiral MacDonald RN
Dr. Noah
May 2 2005, 11:17 AM
The universe is indeed expanding, that's why everything is in redshift, it's moving away from each other. I think the universe is expanding at the speed of light itself since the big bang.

Red shift has something to do with it.

Red shift is a consequence of expanding space , but space is not currently at c.
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somerled
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Admiral MacDonald RN
38957
May 2 2005, 12:07 PM
The universe is not just expanding, space and time are being deformed. So, what appears to be the speed of light in a vacuum from our reference frame, may not apply at the fringe, or other places depending on the deformation of the universe.

Either that or our radar gun needs calibrating.

Ah - frames of reference.
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somerled
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Admiral MacDonald RN
Give up ?

Hint - Hubble's Constant.
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Franko
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Shower Moderator
somerled
May 3 2005, 01:05 AM

Hint - Hubble's Constant.



Has that got something to do with "conservation of energy" ?


I never knew that the universe was not expanding at the speed of light. I'm not arguing, I just find that interesting.


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Fesarius
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Admiral
Quote:
 
... but not defy one of the key tennets of modern physics in doing so ?

and

Quote:
 
No changes to the laws of physics required.

Somerled,

You hadn't stated the second part when I posted my response about the laws of physics. Now I understand your premise more clearly.... :)

Answer? Hubble's Constant. ;)
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Hoss
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Don't make me use my bare hands on you.
There are no 'laws' of physics. :P
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Fesarius
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Admiral
^^^
I see. Theories only?
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Hoss
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Don't make me use my bare hands on you.
Fesarius
May 3 2005, 06:47 AM
^^^
I see.  Theories only?

A law would be something proven to be absolute fact. We (as a people) have several ideas and observations about how the universe appears to work, and they appear to work so often that we arrogantly refer to them as laws, but there have been holes poked in many of those ideas.

Yes, they are theories.
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somerled
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Admiral MacDonald RN
38957
May 3 2005, 07:49 AM
Fesarius
May 3 2005, 06:47 AM
^^^
I see.  Theories only?

A law would be something proven to be absolute fact. We (as a people) have several ideas and observations about how the universe appears to work, and they appear to work so often that we arrogantly refer to them as laws, but there have been holes poked in many of those ideas.

Yes, they are theories.

Accepted theories are elevated to laws. (In physics.)

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somerled
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Admiral MacDonald RN
Fesarius
May 3 2005, 07:16 AM
Quote:
 
... but not defy one of the key tennets of modern physics in doing so ?

and

Quote:
 
No changes to the laws of physics required.

Somerled,

You hadn't stated the second part when I posted my response about the laws of physics. Now I understand your premise more clearly.... :)

Answer? Hubble's Constant. ;)

Hubble's constant is a physical limit (but one that can be exceeded).

Interesting things happen (observationally from our reference frame) when Hubble's Constant is exceeded.

Need more clues ?
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somerled
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Admiral MacDonald RN
Franko
May 3 2005, 05:23 AM
somerled
May 3 2005, 01:05 AM

Hint - Hubble's Constant.



Has that got something to do with "conservation of energy" ?


I never knew that the universe was not expanding at the speed of light. I'm not arguing, I just find that interesting.

No - concervation of energy is something else.

I think you thinking of entropy.
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digifan2004
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Electronic genius
Brain: Pinky, are you pondering what I am pondering?
Pinky: No, Barain - What are ya ponderin'?


Sorry. I just can't resist. :D


If you want something to ponder here is an old question - Why is it scientists always assume we are looking backward through time every time we glaze at the stars? We could be easily glancing at the future as well. Remember the nature of time is like a fluid and nonlinear. It can flow in different directions at the same time.

:headscratch: :idea: :news:
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somerled
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Admiral MacDonald RN
digifan2004
May 13 2005, 10:04 AM
Brain: Pinky, are you pondering what I am pondering?
Pinky: No, Barain - What are ya ponderin'?


Sorry. I just can't resist. :D


If you want something to ponder here is an old question -  Why is it scientists always assume we are looking backward through time every time we glaze at the stars?  We could be easily glancing at the future as well. Remember the nature of time is like a fluid and nonlinear. It can flow in different directions at the same time. 

:headscratch:  :idea:  :news:

Takes time for the photons to reach us. Hence we are not seeing the universe as it is , but as it once was.
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