Register | Sign In


Understanding through Discussion


EvC Forum active members: 65 (9164 total)
4 online now:
Newest Member: ChatGPT
Post Volume: Total: 916,916 Year: 4,173/9,624 Month: 1,044/974 Week: 3/368 Day: 3/11 Hour: 2/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   How big is our Galaxy.
Brad McFall
Member (Idle past 5063 days)
Posts: 3428
From: Ithaca,NY, USA
Joined: 12-20-2001


Message 105 of 147 (279943)
01-18-2006 10:23 PM
Reply to: Message 104 by Percy
01-18-2006 9:54 PM


Re: Relativistic vs Doppler
quote:
IblisNow cavediver, who understands the GR math better than us, says this comparison isn't actually useful for physics. He also says that the time-dilation or red-shift caused by the expansion is the same time-dilation or red-shift caused by acceleration/gravity.
Percy
This doesn't sound right to me. I'm not saying it's wrong, but I want to understand how this is true. That's why I began trying to demonstrate this with some simple math for a nearby retreating galaxy in Message 99.
When I was a teenager I had THOUGHT (actually) that expansion and acceleration(or gravity) were two different things. This thought caused some confusion for me when thinking about entropy. Figenbaum's sideing with Goethe over Newton
http://EvC Forum: Is there any indication of increased intellegence over time within the Human species? -->EvC Forum: Is there any indication of increased intellegence over time within the Human species?
http://www.physicstoday.org/pt/vol-55/iss-7/p43.html
digitalsymbiosis.com is for sale | HugeDomains
on the subjective element in color (per)reception AND his clear distinction of Thermodynamics from Dynamics still continued the seperation in mind that might not be justified. Cavediver would be a better physicist than Mitchell who felt that Cornell was not doing what Rockefellar was physically and left Ithaca a week before I could ask him about this. Perhaps it was just my low level of physical intuition that caused that however. This posting sequence appears to be shaping into an interesting thread!!
This message has been edited by Brad McFall, 01-18-2006 10:28 PM

This message is a reply to:
 Message 104 by Percy, posted 01-18-2006 9:54 PM Percy has not replied

  
Brad McFall
Member (Idle past 5063 days)
Posts: 3428
From: Ithaca,NY, USA
Joined: 12-20-2001


Message 114 of 147 (280203)
01-20-2006 7:38 AM
Reply to: Message 109 by Iblis
01-19-2006 7:25 PM


Re: Relativistic = Doppler (plus Brad McFall)
I will come back and comment more coherently, relating to your post, to read it and the thread as a whole etc., but I can comment right now on:
quote:
What this has to do with entropy, which is probably so simple it isn't one of the things you were thinking of at all, is that if gravity were a force it would act unevenly, resulting in a "feeling" of acceleration like that we get when firing a rocket or riding in Einstein's elevator (rather than fee-fall that is). This force would eventually have to run out, entropize into nothing, whereas we can expect gravitation to continue as long as the mass continues to exist and distort the space in the same way.
because before reading about the problems with Prigogine's ideas that Georgi Gladyshev (http://EvC Forum: GP Gladyshev's paper (s)or mine? -->EvC Forum: GP Gladyshev's paper (s)or mine?) solidified in my thinking
quote:
At that time, the most fashionable theory was probably the one formulated by Ilya R. Prigogine and his colleagues. It maintained that open natural biological systems are far from equilibrium. This seemed to imply that they (such systems) can be formed and exist only as a result of the formation of ?live? dissipative structures. I would like to note that under dramatic changes of the environment?s parameters (I call such changes revolutionary, as opposed to evolutionary), individual biological systems function in conditions that are far from equilibriums. In such conditions one can, indeed, observe the emergence of dissipative (dynamic) structures. However, the role of these structures in the evolutionary development of living objects is not determinative. In my view, Prigogine?s theory was a dead end in terms of thermodynamics or, at best, in Roger Penrose?s terms, a trial one. Still, many researchers remain faithful to these views, although, as applied to evolutionary biological processes, there is not a single even semi-quantitative argument in favor of Prigogine?s theory. Also, delusions in the area of thermodynamics of biological evolution are promoted, as before, by the serious errors arising from a mistaken idea of entropy and interpretation of the second law. Because of these errors, inflated by visionaries-cum-dilettantes, many biophysicists neglect the works of Gibbs and the other classics. The fathers of ?postnonclassical? science (which, in my view, is hardly related to science at all) have most probably made no serious study of physical chemistry and other fundamental works. Following in the steps of Kenneth Denbigh, I have recently devoted several publications to these matters.

, I HAD considered the possibility, I think, you referenced.
Imagine, gravity clinematic differences ( g-force can interact
http://EvC Forum: Information -->EvC Forum: Information
http://EvC Forum: Evolution vs.PE -->EvC Forum: Evolution vs.PE
http://EvC Forum: Evolution vs.PE -->EvC Forum: Evolution vs.PE
Collections Search | Smithsonian Institution Archives
Just a moment...
Nace had found that there were energy indications to suspect gravity played a part in space flight changes in physiology.
with torque on cell contents differentially if the size is larger than bacteria) in a dissipative system. If gravity is dissipatively active over(beyond) themal effects then the "elevator effect" could interact physiologically with actual physical chemical movements that DO contribute to entropy!! This is the kind of thing I mention if I must compare my own ideas of what is going on inside a cell with Behe's Jonny-come-later approach seems to garner preferntially to my comments. My thinking has a become less ugly than this however.
Thanks for responding. I dont have more time this morning, more later.
This message has been edited by Brad McFall, 01-20-2006 12:43 PM

This message is a reply to:
 Message 109 by Iblis, posted 01-19-2006 7:25 PM Iblis has not replied

  
Brad McFall
Member (Idle past 5063 days)
Posts: 3428
From: Ithaca,NY, USA
Joined: 12-20-2001


Message 119 of 147 (280283)
01-20-2006 12:08 PM
Reply to: Message 98 by Iblis
01-16-2006 7:36 PM


Re: When Worlds Collapse
I am much more a biologist than a physicist although both of my brothers proclaim to know something of the latter more than me, but sometimes I wonder...
Thus I am more in tune with the Erhlich/Simon disagreement about the amount of copper than how Hawking flip-opped on what information can or can not come out of a black hole.
If the size of our galaxy depends on how far in the infinite time-future human beings explore beyond a determinate point, a point say named by Newton, then my ideas about how gravity *might* be causally equilibrated in organisms may bear in the hearing on this thread's subject, however one would clearly need to distinguish chemistry of non-linear physics from the analytic at equilibrium population genetics and I am not prepared for that discussion which shows that recent criticism of Wright is not justified as to the future of agriculture and the dominion mandate because of lack of understanding/appreciation of the intricacy involved.
It was an evc-thing to witness Percy and Sylas discuss the expansion of space. I am sure Percy can bring the conversation back through that diagram that Syals presented if you and Cavediver do not abate in conversation. I suspect that I missed some of the conversation about the aether through creationism but I will try to read the rest of this thread to see if I can address some creationistic interpretations of Einstein OR Lorenz. I for one find imagining my self next to a lightwave non-intuitive but I have little problem with suspecting the law of straight line motion of Newton within the space that expands during biological evolution does not occur. I often think it does. If however this is related to my former conflation of entropy with universal expansion (as to the energy of ?what mass??)I can do no good but distract from the well posted messages say between Percy and CaveDiver as well as you here interalia.
On a personal note, friends often remarked about the youngest boy in our family who picked up on the black hole that my other brother and I were discussing, as he would often bring the subject up repeatedly, yet he was only about 8 then.
This message has been edited by Brad McFall, 01-20-2006 12:12 PM
This message has been edited by Brad McFall, 01-20-2006 12:13 PM

This message is a reply to:
 Message 98 by Iblis, posted 01-16-2006 7:36 PM Iblis has replied

Replies to this message:
 Message 124 by Iblis, posted 01-21-2006 10:28 AM Brad McFall has replied

  
Brad McFall
Member (Idle past 5063 days)
Posts: 3428
From: Ithaca,NY, USA
Joined: 12-20-2001


Message 126 of 147 (280570)
01-21-2006 5:39 PM
Reply to: Message 124 by Iblis
01-21-2006 10:28 AM


Re: When Worlds Collapse
You said,
quote:
if gravity is energy it must therefore necessarily dissipate is already a good strong indicator that our formulations about it necessarily require a different view, GR being the best approximation of that different view produced so far; and I'm sure that's
Is this a "different" view than Cavediver's?
As for GR I have knowingly kept from THINKING about geodesics when formulating my own thoughts on the object, whether matter or mass or simply the argument of impenetribility (in general)so, whatever I said might be inconsistent relative to the contents of this thread even if it reveals truth in another heading.
My concern was a continuum in which an organism body NO MATTER THE DISSIPATION still sustains some heritible causality and correlation across generations within kinematically layered dynamics of motions but I have no idea how this might be related to components of parity deviating entropy in general. It is only through the "infinte" nature of FUTURE lineages that I can even think my use of gravitational forces biologically contributes to the thought process of a physicist in particular. It is true I can think of possible negative or even entropy relative to cell death but I suspect that Gladyshev, haveing giving much more particular thought to the suspected use of dissipation physics than me is more likely correct as to the physical less the biological reality. He might be mistaken in his thought on the relation of thermostat parameters to mitosis but I am not ready to comment on that possibility. Even without a quantification however I DID start to READ Prigogine's original works and I find that he did not clearly seperate as to self-assembly or in the context of population genetics self-fertilization nonequilibrium from non--linear affects(artifacts). That is what confuses me biophysically. Einstein could be mistaken but I am also not in a position to make that reflection determinate.
I HAD thought about the possibility that fluctuations in gravity could dissipatively influence the motion of hydrophobic protein side chains within cell membranes such as to influence topobiological flow of SAM molecules where Wright relates DYNAMICS of soma and nucleus but I have NOT related them to particular species and this is necessary. It might be that the thought I am having here has nothing to do with primates at all!! If that is true it can not have the inside influence on the lacking thoughts of physicists. That would not make me sad. I just do not know.
In the end I am more interested in testing the existence of Farady derived thermal currents than universal black hole information for a creature of unknown composition, else I prefer to pick out my meat before I eat it. LOL.
This message has been edited by Brad McFall, 01-21-2006 05:50 PM

This message is a reply to:
 Message 124 by Iblis, posted 01-21-2006 10:28 AM Iblis has replied

Replies to this message:
 Message 127 by Iblis, posted 01-21-2006 6:14 PM Brad McFall has replied

  
Brad McFall
Member (Idle past 5063 days)
Posts: 3428
From: Ithaca,NY, USA
Joined: 12-20-2001


Message 129 of 147 (280938)
01-23-2006 12:46 PM
Reply to: Message 127 by Iblis
01-21-2006 6:14 PM


Re: When Worlds Collapse

This message is a reply to:
 Message 127 by Iblis, posted 01-21-2006 6:14 PM Iblis has not replied

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024