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  (#46) Old
Stripe Stripe is offline
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June 22nd, 2009, 12:29 PM
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Originally Posted by noguru View Post
The maximum velocity of light is an assumption that is supported by all the evidence we have to date. If you want to start speculating about evidence which demostrates that this velocity can be exceeded, you'ld be best off to build a model expressing your speculation. Then run some experiments to see if your model is supported by observable evidence.
Ah!

Is the assumption that nothing can exceed lightspeed based on the physical limitations to accelerating matter or is it required in order for the math to work?




Where is the evidence for a global flood?
That doesn't make sense to me.
But, then again, you are very small.

"...the waters under the "expanse" were under the crust."
-Bob B.

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  (#47) Old
noguru noguru is offline
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June 22nd, 2009, 12:30 PM
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Originally Posted by Stripe View Post

I have no particular goal in sight.
Oh so this inquiry is all acedemic?

Quote:
Originally Posted by Stripe View Post
I just think it's stupid to suggest that light travels at some magical constant.
The maximum limit of the speed of light is a constant, so far. Because all the evidence we have points to the idea that light cannot exceed that velocity.




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noguru noguru is offline
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June 22nd, 2009, 12:33 PM
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Originally Posted by Stripe View Post
Ah!

Is the assumption that nothing can exceed lightspeed based on the physical limitations to accelerating matter or is it required in order for the math to work?
I thinks those are two lines of evidence that support the assumption. Do you have any lines of evidence that support a "more accurate" assumption?




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Flipper Flipper is offline
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June 22nd, 2009, 12:36 PM
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Originally Posted by Stripe View Post
I disagree. And I think it is very important you understand why. Math does not "describe" reality. It models it. Our ideas describe reality.
See, this is why language is such an imperfect tool.

The way I see it, a model is an attempt at a description of something. If it's a mathematical model, then math is the language used to make the description.

Whether written in English or Latin or mathematically described, models are an abstraction of reality just as words are an abstraction of the things they describe. Neither are the things themselves. It's just that mathematical descriptions are a lot more precise and a lot less open to personal interpretation and bias.
   
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Lighthouse Lighthouse is offline
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June 22nd, 2009, 12:37 PM
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Originally Posted by noguru View Post
The maximum velocity of light is an assumption that is supported by all the evidence we have to date. If you want to start speculating about evidence which demostrates that this velocity can be exceeded, you'ld be best off to build a model expressing your speculation. Then run some experiments to see if your model is supported by observable evidence.
We don't have the instruments to measure it yet, do we?




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Flipper Flipper is offline
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June 22nd, 2009, 12:39 PM
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Originally Posted by koban View Post
Yep.

That's why this thread has gone on so long.
For us, maybe. For Lighthouse, it took mere seconds as his posts attribute. All thanks to the power of the Infinite Density Drive.
   
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noguru noguru is offline
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June 22nd, 2009, 12:46 PM
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Originally Posted by Lighthouse View Post
We don't have the instruments to measure it yet, do we?


Allrighty then. When they have those instruments, can you let me know? We can then pick up where we left off here.

Or:

I guess we should cross that bridge when we get there.




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koban koban is offline
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June 22nd, 2009, 01:13 PM
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Originally Posted by Lighthouse View Post
We don't have the instruments to measure it yet, do we?


Ya know, dude, there's this thing called the interwebs?


Quote:
The first quantitative estimate of the speed of light was made in 1676 by Ole Christensen Rřmer, who was studying the motions of Jupiter's moon, Io, with a telescope.



   
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noguru noguru is offline
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June 22nd, 2009, 01:23 PM
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Originally Posted by koban View Post
Ya know, dude, there's this thing called the interwebs?
Yes, the interesting thing to note is that historically our instruments have gotten more accurate or shown less variation in the results.




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koban koban is offline
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June 22nd, 2009, 01:26 PM
I remember doing the Focault experiment in university physics.
   
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dan1el dan1el is offline
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June 22nd, 2009, 03:01 PM
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Originally Posted by Lighthouse View Post
We don't have the instruments to measure it yet, do we?
To measure what? The speed of light?




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koban koban is offline
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June 22nd, 2009, 03:20 PM
We use light choppers all the time in spectrophotometers.

They wouldn't work if the speed of light was varying all over the place.



Last edited by koban; June 22nd, 2009 at 04:38 PM.
   
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Gerald Gerald is offline
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June 22nd, 2009, 04:22 PM
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Originally Posted by koban View Post
We use light choppers all the time in spectrophotometers.

They wouldn't worked if the speed of light was varying all over the place.
Well, it's obvious that gravity is effecting light and the spectrophotometer in just such a way as to render such variance undetectable.

The anti-relativity crowd would do just as well to claim that the value of c is infinite, and that any attempt to measure it is based on nothing more than undemonstrable assumptions.




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chair chair is offline
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June 22nd, 2009, 04:55 PM
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Originally Posted by koban View Post
We use light choppers all the time in spectrophotometers.

They wouldn't work if the speed of light was varying all over the place.
do you work in spectroscopy?
I do
   
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koban koban is offline
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June 22nd, 2009, 05:17 PM
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Originally Posted by chair View Post
do you work in spectroscopy?
I do


Used to. Had my own mass spec when I was doing research a couple of careers ago.

I miss bench work.
   
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