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| Here's something to ponder. | |
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| Tweet Topic Started: May 2 2005, 09:17 AM (841 Views) | |
| somerled | May 3 2005, 03:57 AM Post #16 |
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Admiral MacDonald RN
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No changes to the laws of physics required. |
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| somerled | May 3 2005, 03:58 AM Post #17 |
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Admiral MacDonald RN
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Actually the universe is not expanding , it is space that is expanding. |
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| somerled | May 3 2005, 04:01 AM Post #18 |
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Admiral MacDonald RN
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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 | May 3 2005, 04:03 AM Post #19 |
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Admiral MacDonald RN
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Ah - frames of reference. |
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| somerled | May 3 2005, 04:05 AM Post #20 |
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Admiral MacDonald RN
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Give up ? Hint - Hubble's Constant. |
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| Franko | May 3 2005, 05:23 AM Post #21 |
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Shower Moderator
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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 | May 3 2005, 07:16 AM Post #22 |
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Admiral
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and
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 | May 3 2005, 07:44 AM Post #23 |
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Don't make me use my bare hands on you.
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There are no 'laws' of physics.
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| Fesarius | May 3 2005, 07:47 AM Post #24 |
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Admiral
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^^^ I see. Theories only? |
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| Hoss | May 3 2005, 07:49 AM Post #25 |
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Don't make me use my bare hands on you.
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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 | May 3 2005, 10:39 AM Post #26 |
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Admiral MacDonald RN
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Accepted theories are elevated to laws. (In physics.) |
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| somerled | May 3 2005, 10:42 AM Post #27 |
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Admiral MacDonald RN
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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 | May 3 2005, 10:44 AM Post #28 |
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Admiral MacDonald RN
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No - concervation of energy is something else. I think you thinking of entropy. |
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| digifan2004 | May 13 2005, 10:04 AM Post #29 |
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Electronic genius
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Brain: Pinky, are you pondering what I am pondering? Pinky: No, Barain - What are ya ponderin'? Sorry. I just can't resist. 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. :idea:
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| somerled | May 13 2005, 10:13 AM Post #30 |
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Admiral MacDonald RN
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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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:idea:
1:55 PM Jul 11