![]() |
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
![]()
Stephen Tonkin wrote:
Martin Brown wrote: [...] I tend to agree. Despite its many problems, BBT is the best theory we've got. [...] What is not in doubt is that there is a lot of non-luminous gravitating matter that we cannot see or detect at present. Actually, AIUI there is some doubt in some quarters. IIRC there is a hypothesis that does away with the need for dark matter by postulating a mean path length -- the figure 17kpc lurches to mind, but is probably wrong -- for gravitons. I have no more problem accepting a mean path length we cannot measure for a particle that we cannot detect than I do accepting the existence of matter that we cannot detect. ISTR it is more along the lines of having gravitons with mass and breaking Lorentz invariance. Is this the hypothesis that you mean? http://moriond.in2p3.fr/EW/2005/Tran...v/Tinyakov.pdf Seems to me like it makes testable predictions so it qualifies as a scientific theory. To me it seems increasingly likely that Fred Hoyle was right (continuous creation) and the microwave background is caused by something other than the Big Bang. Not a chance. Even in the 1960's it was apparent that the Steady State Universe was totally inconsistent [...] there is essentially no doubt that remotest parts of the universe are receeding from us at speeds close to c. AIUI Hoyle and Wickramasinghe postulated a Continuous Creation that is not Steady State and which is consistent with the recession speed observations. ISTR they did, but it doesn't really have much appeal. That the young universe looks different (much more active) compared to the present day and makes Big Bang a far more natural choice with fewer ad hoc adjustments. Regards, Martin Brown |
#12
|
|||
|
|||
![]()
I will make it easy for you.
The problem is how the AU is derived and used by Newton in his application to planetary heliocentric motion. http://encarta.msn.com/media_4615477...real_Time.html After breaking several astronomical principles in order to refer planetary motion off mean Sun/Earth distances he does everyone a favor and announces - "I likewise call attractions and impulses, in the same sense, accelerative, and motive; and use the words attraction, impulse or propensity of any sort towards a centre, promiscuously, and indifferently, one for another; considering those forces not physically, but mathematically: wherefore, the reader is not to imagine, that by those words, I anywhere take upon me to define the kind, or the manner of any action, the causes or the physical reason thereof, or that I attribute forces, in a true and physical sense, to certain centres (which are only mathematical points); when at any time I happen to speak of centres as attracting, or as endued with attractive powers." http://members.tripod.com/~gravitee/...tions.htm#time It is not just a matter of being incorrect ,Newton made misjudgements based on Flamsteed's false 'proof' of axial rotation based on the return of a star in 23 hours 56 min 04 sec. The program tonight on Horizon will be just another useless exercise on Newtonian adulation regardless of what they think is wrong.He really was incorrect but there is nobody around good enough to match his maneuvering. |
#13
|
|||
|
|||
![]()
Poor Albert was still working with 'fixed stars' or pre-Galactic
models which had served Newton and indeed his reasons for 'curving' the visible universe is still the most unintentionally hilarious treatment of any person,anywhere - "There are stars everywhere, so that the density of matter, although very variable in detail, is nevertheless on the average everywhere the same. In other words: However far we might travel through space, we should find everywhere an attenuated swarm of fixed stars of approximately the same kind and density. 1 This view is not in harmony with the theory of Newton. The latter theory rather requires that the universe should have a kind of centre in which the density of the stars is a maximum, and that as we proceed outwards from this centre the group-density of the stars should diminish, until finally, at great distances, it is succeeded by an infinite region of emptiness. The stellar universe ought to be a finite island in the infinite ocean of space. 1 2 This conception is in itself not very satisfactory. It is still less satisfactory because it leads to the result that the light emitted by the stars and also individual stars of the stellar system are perpetually passing out into infinite space, never to return, and without ever again coming into interaction with other objects of nature. Such a finite material universe would be destined to become gradually but systematically impoverished. " http://www.bartleby.com/173/30.html That is when I stopped dealing with relativity and started concentrating on what Newton really did wrong.If anyone can believe that it is a shame that light leaving stars is the basis for the exotic spacetime nonsense well they are welcome to that feebleminded,subhuman conception but while it is a genuine joke,the real Newtonian maneuvering is certainly not. No genius ever betrays his kind because of intellectual greed and here Newton was an exception.The cost to humanity has been enormous yet it can be easily untangled and set right with a bit of effort.How many people will await the Horizon documentary tonight with the same high expectations but will get the same unsatisfying answers with the same dull phony ponderings.The actual answers derived from Copernican heliocentricity and its later Keplerian/Roemerian refinements are exciting and easily enjoyable but buried under Newtonian rubbish.When that documentary comes out I will enjoy it with others but I will not hold my breath waiting . |
#14
|
|||
|
|||
![]()
Perhaps dark matter is simply the fabric (canvas) of space on which the
universe is painted? (or screen on which it is projected?) Well, it's as plausible as anything oriel comes up with on one of his better days. ;-) |
#15
|
|||
|
|||
![]()
I have no problem with Newton's absolute/relative space and time
insofar as they represent a consistent picture of heliocentricity as he saw it and although the Newtonian astronomical working principles are incorrect in contrast to the descriptions provided by Copernicus,Kepler and even Galileo ,every single person here still uses his description of planetary motions as valid. It is a thankless task to provide the real explanation for the adoption of Copernican heliocentricity and,more importantly, its working principles against the flawed Newtonian conception and the sidereal working principles that proves now only to be a calendrically driven convenience for optical astronomers.It is easy to see how an .986 deg/3 min 56 sec axial coordinate was hammered into an orbital displacement but this is just one of many tamperings that highlight the errors,misjudgements and misconduct of that era. Genuine investigators will eventually find themselves bypassing the 20th century excesses and return to Newton's misjudgements in order to provide an more fluent description of the structure and motions of planets and solar systems insofar as the major obstacles exist at the juncture where the solar system is no longer isolated from the effects of its motion around the galactic axis. I enjoyed the documentary,even while exactly knowing where the obstacles exists, because the problems were presented in a manageable way.I will tell anyone who cares that they cannot,I repeat cannot come to satisfactory working principles while retaining the original Newtonian heliocentric outlook in contrast to the correct Copernican/Keplerian framework.Regardless of what anyone thinks or says,empiricists retain absolute/relative space or that peculiar Newtonian quasi-geocentric outlook and I assure them,it is simply not worth the effort to retain it.People are looking for heroes with real accomplishements rather than clawing celebrity for its own sake,more often than not the true scientists are those who present documentaries of the connection between life and surrounding conditions or the magnificence of extreme astronomical and terrestial nature without padding it with speculation.The documentary the other night was the first sign that a more balanced approach highlights what is substance and what is not and long may it continue. [ External conditions are never good for balancing responsibilities towards concerns for the astronomical heritage and those of everyday existence but these things are luxuries compared to real pressures of men who work to feed their kids so I have no reason to complain and neither does anyone else here. I have come to appreceate that genuine investigators do engage in the same struggle to surmount the limitations imposed by 17th century conceptions and have bypass the exotic 20th century rubbish which will always shout for attension and the next phase is to present things in a less cluttered and a less hurried way.] |
#16
|
|||
|
|||
![]() "Chris.B" wrote in message oups.com... Perhaps dark matter is simply the fabric (canvas) of space on which the universe is painted? (or screen on which it is projected?) My wierd thoughts as well. It's the "rest" of the universe - just in dimensions that we can't measure or understand right now. If M-theory posits 11 dimensions, then surely the mass/energy in the non-classical dimensions has effect. Well, it's as plausible as anything oriel comes up with on one of his better days. ;-) Nah - **** it. He must be right @-) |
#17
|
|||
|
|||
![]()
Wasn't it adm who wrote:
My wierd thoughts as well. It's the "rest" of the universe - just in dimensions that we can't measure or understand right now. If M-theory posits 11 dimensions, then surely the mass/energy in the non-classical dimensions has effect. My thoughts exactly. In particular, these posts from last year on this group http://groups.google.com/group/uk.sc...8cf86c6b5fa703 http://groups.google.com/group/uk.sc...62c7056a9a0cd4 -- Mike Williams Gentleman of Leisure |
#18
|
|||
|
|||
![]()
Wouldn't multiple dimensions require some rather strict
cross-dimensional physical placement? The leakage from even a small black hole popping up on the dining table is apt to spoil ones appetite. Surely any cross-dimensional gravitational effects should be detectable? One wonders whether photons are indeed blocked between dimensions? This might offer an explanation for the genuine sightings of inexplicable UFOs and ghosts. Are they "simply" time-shifted images of other-dimensional realities seen across temporarily weak or near-coincident dimensional barriers? Perhaps time is really a much weaker force tham we commonly imagine? How am I doing? ;-) *|;ø)# |
#19
|
|||
|
|||
![]()
Wasn't it Chris.B who wrote:
Wouldn't multiple dimensions require some rather strict cross-dimensional physical placement? The leakage from even a small black hole popping up on the dining table is apt to spoil ones appetite. Surely any cross-dimensional gravitational effects should be detectable? It depends how close the next universe is. If the nearest brane that contains matter happens to be the equivalent of a few tens of thousand light years away, then the gravity that leaks into our universe would be smeared out as if it were coming from diffuse invisible sources the size of a galaxy. -- Mike Williams Gentleman of Leisure |
#20
|
|||
|
|||
![]()
How closely can the maths predict interdimensional (interbranal?)
distances? |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Young Galaxies Grow Up Together in a Nest of Dark Matter (Forwarded) | Andrew Yee | Astronomy Misc | 0 | December 23rd 05 04:30 PM |
Young Galaxies Grow Up Together in a Nest of Dark Matter (Forwarded) | Andrew Yee | News | 0 | December 23rd 05 04:02 PM |
Can't get out of the universe "My crew will blow it up"!!!!!!!!!!! | zetasum | Space Shuttle | 0 | February 4th 05 11:11 PM |
Dark Matter and Dark Energy: One and the Same? | LenderBroker | Amateur Astronomy | 4 | July 14th 04 01:45 AM |