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Speed of light not constant = young universe
#11
RE: Speed of light not constant = young universe
(June 21, 2014 at 7:37 pm)Heywood Wrote:
(June 21, 2014 at 7:26 pm)Cthulhu Dreaming Wrote: They will, however, need to demonstrate it - along with the anisotropic speed of light folks.

There is nothing wrong with taking the position that, "as far as we can tell" the speed of light is constant over time. This is the position I would take until proven otherwise.

True as far as it goes. A better way to put it might be, 'Given that ALL the available evidence, ALL measurements, and ALL imaginable repercussions and consequences indicate a constant value for c, only an utter bonehead would opt to doubt that the speed of light is a constant over time.'

Boru
‘I can’t be having with this.’ - Esmeralda Weatherwax
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#12
RE: Speed of light not constant = young universe
Quote:If someone claims the speed of light changes over time, you really can't just dismiss it as poppycock.

Watch me. Especially when his evidence is wishful thinking to make his absurd sky-daddy feasible.
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#13
RE: Speed of light not constant = young universe
(June 21, 2014 at 7:37 pm)Heywood Wrote:
(June 21, 2014 at 7:26 pm)Cthulhu Dreaming Wrote: They will, however, need to demonstrate it - along with the anisotropic speed of light folks.

There is nothing wrong with taking the position that, "as far as we can tell" the speed of light is constant over time. This is the position I would take until proven otherwise.

Is that contradictory to what I said? It appears to be constant through a homogenous medium. Those that make positive claims otherwise need to show their work - and they'll need to propose a falsifiable mechanism by which it could be so.
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#14
RE: Speed of light not constant = young universe
It appears heat is another issue for this hypothesis.

Apparently, if the amount of decay that we "think" occurred over ~4.5 billion years were compressed to ~6-10 thousand years, the amount of heat energy released would have been enormous.
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#15
RE: Speed of light not constant = young universe
(June 21, 2014 at 7:21 pm)Heywood Wrote:
(June 21, 2014 at 5:54 pm)KUSA Wrote: This ignorant Christian claims such stupid crap how do you respond to it. This came off a Christian forum.

The speed of light is determined by the permittivity and permeability of space. Why should one or both of those factors be constant over time other than the fact that it makes it easier for us to make sense of the world? I hate to break it to you, but without God, there is no reason to think the world was created in such a way as to ease the difficulty in making sense of it.

If someone claims the speed of light changes over time, you really can't just dismiss it as poppycock. It probably is constant over time....but we don't know for sure that it is.

Hate to break it to you, but any claim unaccompanied by evidence must be dismissed as poppycock.

You can really shut up now. Our opinion of you is already as low as it can get, opening your mouth some more would no longer have any practical effect.
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#16
RE: Speed of light not constant = young universe
(June 21, 2014 at 7:54 pm)Cthulhu Dreaming Wrote:
(June 21, 2014 at 7:37 pm)Heywood Wrote: There is nothing wrong with taking the position that, "as far as we can tell" the speed of light is constant over time. This is the position I would take until proven otherwise.

Is that contradictory to what I said? It appears to be constant through a homogenous medium. Those that make positive claims otherwise need to show their work - and they'll need to propose a falsifiable mechanism by which it could be so.

To show their work requires a vast amount of time. We simply haven't had enough time in which we knew how to measure the speed of light to make such a determination. 100,000 years from now we will be in a much better position to claim the speed of light is constant over time(if it turns out that it is).

(June 21, 2014 at 8:15 pm)Chuck Wrote:
(June 21, 2014 at 7:21 pm)Heywood Wrote: The speed of light is determined by the permittivity and permeability of space. Why should one or both of those factors be constant over time other than the fact that it makes it easier for us to make sense of the world? I hate to break it to you, but without God, there is no reason to think the world was created in such a way as to ease the difficulty in making sense of it.

If someone claims the speed of light changes over time, you really can't just dismiss it as poppycock. It probably is constant over time....but we don't know for sure that it is.

Hate to break it to you, but any claim unaccompanied by evidence must be dismissed as poppycock.

You can really shut up now. Our opinion of you is already as low as it can get, opening your mouth some more would no longer have any practical effect.

Do you have any evidence the permittivity and permeability of space is constant over time? Your claim the speed of light is constant over time implies that you do. Its time to put up or shut up Chuckie.

I am not claiming the speed of light has varied over time. I am only suggesting that we really do not know. Its an assumption that we use because it makes it easier for us to model the world.....but the truth is...it doesn't have to be that way. Unless you believe in God, there is no reason to believe the world just happens to be set up in a way that is convenient for us to come to an understanding of it.
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#17
RE: Speed of light not constant = young universe
Huh, no.

Any Variation in the speed of light over the history universe could be constrained to a fairly high tightness with just a nearly instantaneous observation, unless you are to make a host of additional totally unwarranted, ad hoc, unsupported claims just to protect the unwarranted, ad hoc, unsupported claim in a futile effort to the already Unsalvageable reputation of your coreligionists.


So try again.
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#18
RE: Speed of light not constant = young universe
(June 21, 2014 at 8:38 pm)Chuck Wrote: Huh, no.

Any Variation in the speed of light over the history universe could be constrained to a fairly high tightness with just a nearly instantaneous observation, unless you are to make a host of additional totally unwarranted, ad hoc, unsupported claims just to protect the unwarranted, ad hoc, unsupported claim in a futile effort to the already Unsalvageable reputation of your coreligionists.


So try again.

Another unsupported Chuckie claim.

Put up or shut up.
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#19
RE: Speed of light not constant = young universe
Reminds me of a discussion in metaphysics class beginning with the premise that space was stretched out in one direction causing objects and space the lengthen as you turned into the stretched direction. Once someone proposed light and sound and other things would travel proportionally faster in the elongated direction we gave it up as an untestable, and ultimately unimportant idea. No difference could be demonstrated even it it were true.
If there is a god, I want to believe that there is a god.  If there is not a god, I want to believe that there is no god.
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#20
Re: RE: Speed of light not constant = young universe
(June 21, 2014 at 6:08 pm)Jenny A Wrote: Do you have a link for this nonsense? Sounds kinda like the arguement that god made the stars with their light already reaching the earth.

http://www.christianforumsite.com/index....ads/38966/

It started out about when jebus was coming back.
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