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Something new under the sun

somewhere said:
Which leaves open staggering possibilities that would force wholesale reprinting of all physics books:

* Invisible dark matter is tugging at the probes
* Other dimensions create small forces we don't understand
* Gravity works differently than we think

Whoa, whoa there I say. Ya sound like the world's coming to an end. On the contrary, Newtons mechanics still work very nicely, and around the edges Special Relativity fills in nicely. Even if this turns out to be something as revolutionary as ST, there won't be a need (a NEED, I say - the books will be rewritten in any case, 'cause a buck is a buck) for rewrites. At best, a new additional chapter, because if Newton is still able to predict a satellite's orbit as accurately as it is, it still must be overwhelmingly correct. The suggestions given are probably far down the line in the list of probable causes. One can dream, but lay-people get weary of the NEXT BIG THING, particularly when even scientists don't yet know what to make of it.
 
Whoa, whoa there I say. Ya sound like the world's coming to an end. On the contrary, Newtons mechanics still work very nicely, and around the edges Special Relativity fills in nicely. Even if this turns out to be something as revolutionary as ST, there won't be a need (a NEED, I say - the books will be rewritten in any case, 'cause a buck is a buck) for rewrites. At best, a new additional chapter, because if Newton is still able to predict a satellite's orbit as accurately as it is, it still must be overwhelmingly correct. The suggestions given are probably far down the line in the list of probable causes. One can dream, but lay-people get weary of the NEXT BIG THING, particularly when even scientists don't yet know what to make of it.


These are good points. Even though Newtonian gravity isn't the most modern and accepted version of gravitational theory, it does work well for many things. Just like how we don't completely throw out classical Newtonian mechanics (F = ma) because of special relativity and quantum mechanics. F = ma still works extremely well for most situations (such as car collisions) that we are likely to encounter in our everyday lives.

In this sense, these portions of classical physics are, at best, approximations because they don't give us the most accurate view of things across all scales. General relativity is by far a superior expression of gravity in very intense fields and across the universe, and quantum mechanics definitely makes more sense on the atomic (and smaller) scale.

Newtonian physics has its place. Just not in all cases.

Perhaps some novel new addition or adjustment to our laws of physics awaits with the Pinoeer Anomaly, or perhaps it's something very mundane and boring. Who knows? We'll figure it out eventually, I think.

While I'm on the topic, here's a link to Wikipedia summarizing some of the possible explanations for the Anomaly...

http://en.wikipedia.org/wiki/Pioneer_anomaly#Possible_explanations

Very interesting indeed - I'm especially interested in what they'll observe with the New Horizons spacecraft. I wonder if there's anyone putting together a betting pool on what the nature of the Anomaly is? :)
 
Furthermore, it is hypothesized that the solar system has escaped the gravity of the Galaxy as evidenced by its orbital speed and radial distance and by the visible mass within the solar system radius. This means that spacecraft which become unbound to the solar system would also be galactically unbound and subject to the Hubble law. This hypothesis and the extended Hubble law may explain the anomalous acceleration found to be acting upon the unbound Pioneer 10 & 11 spacecraft. Thus, the Pioneer anomaly may be a counter example to the dark matter hypothesis.
Because photons have a speed which make them unbound to the Galaxy, it is predicted that the navigation beam in open space would undergo a cosmological redshift in its frequency which would be detectable with modern clocks.
http://arxiv.org/abs/gr-qc/0610029v5

... and then my head exploded.


Again.
 
Self Creation Cosmology (SCC) theory claims the universe's mass is created out of its self contained gravitational and scalar fields. In other words, mass is again not constant over time and can be created by mass concentrations, allowing for the sort of matter creation envisioned by Arp to explain his observations. The original SCC paper appeared in 1982 by G.A. Barber. According to http://toolhost.com/Non-standard_cosmology.html, "The latest version of the theory is conformally equivalent to canonical GR in vacuo so that test particles follow the geodesics of GR in solar system experiments." The above source notes that SCC theory "does not require unknown dark energy, or exotic dark matter, to be concordant with present cosmological constraints. In particular, as an example of a freely coasting model, in which the universe expands strictly linearly with time, SCC clears basic constraints on nucleosynthesis." It also states that "in the Jordan conformal frame of the theory the cosmological solution is closed, static, eternal and singularity free. In this frame rulers 'shrink' and atomic clocks 'speed up' as their atoms exponentially gain mass with cosmological time. ... snip ... Finally, SCC predicts a cosmological 'clock-slip' between atomic clock time and ephemeris time. Consequentially, distant spacecraft should appear to suffer a sunwards acceleration equal to cH, as indeed seems to be observed in the Pioneer anomaly."

More on SCC can be found at http://en.wikipedia.org/wiki/Self-creation_cosmology .
 

Insane crackpot alert!!

Although it is intriguing that the anomalous acceleration of Pioneer is rather close to the Hubble acceleration. I noticed that a few years ago, but didn't (and don't) see how to make use of it.

Another interesting factoid is that most of the modified theories of gravity people have proposed make gravity weaker at long distances (usually because they are trying to solve the cosmological constant problem). But the extra Pioneer acceleration is towards the sun, as if gravity got stronger at long distances...
 
Another interesting factoid is that most of the modified theories of gravity people have proposed make gravity weaker at long distances (usually because they are trying to solve the cosmological constant problem). But the extra Pioneer acceleration is towards the sun, as if gravity got stronger at long distances...

http://www.holoscience.com/news/mystery_solved.html "After launch, a spacecraft accepts electrons from the surrounding space plasma until the craft’s voltage is sufficient to repel further electrons. Near Earth it is known that a spacecraft may attain a negative potential of several tens of thousands of volts relative to its surroundings. So, in interplanetary space, the spacecraft becomes a charged object moving in the Sun’s weak electric field. Being negatively charged, it will experience an infinitesimal “tug” toward the positively charged Sun. Of most significance is the fact that the voltage gradient, that is the electric field, throughout interplanetary space remains constant. In other words, the retarding force on the spacecraft will not diminish with distance from the Sun. This effect distinguishes the electrical model from all others because all known force laws diminish with distance."
 
http://www.holoscience.com/news.php?article=0yfteeje "Voyager 1 at the Edge – of what?, 13 November 2005"

http://www.holoscience.com/news.php?article=55fx8yeh "30 September 2006, Voyager Probes the Sun's Electrical Environment"

http://www.thunderbolts.info/tpod/2007/arch07/070912pioneeranomaly.htm "The Pioneer Anomaly, Sep 12, 2007"


More electric-plasma universe woo!!! Just as the thread was getting on track about the Pioneer Anomaly. Arrrggh... :mad:

Since the woos are going to post links, I might as well too...

Comparisons of Plasma Cosmology to Mainstream Cosmology

<snip>
"Plasma cosmology has been developed in much less detail than mainstream cosmology and lacks many of the key predictions and features of the current models[citation needed]. In mainstream cosmology, detailed simulations of the correlation function of the universe, primordial nucleosynthesis, and fluctuations in the cosmic microwave background radiation, based on the principles of standard cosmology and a handful of free parameters, have been made and compared with observations, including non-trivial consistency checks. Plasma cosmology generally provides qualitative descriptions and no systematic explanation for the standard features of mainstream cosmological theories[citation needed].

For example, the standard hierarchical models of galaxy and structure formation rely on dark matter collecting into the superclusters, clusters, and galaxies seen in the universe today. The size and nature of structure are based on an initial condition from the primordial anisotropies seen in the power spectrum of the cosmic microwave background.[17] Recent simulations show agreement between observations of galaxy surveys and N-body cosmological simulations of the Lambda-CDM model.[18] Most astrophysicists accept dark matter as a real phenomenon and a vital ingredient in structure formation, which cannot be explained by appeal to electromagnetic processes. The mass estimates of galaxy clusters using gravitational lensing also indicate that there is a large quantity of dark matter present, an observation not explained by plasma cosmology models.[19]

Mainstream studies also suggest that the universe is homogeneous on large scales without evidence of the very large scale structure required by plasma filamentation proposals.[20] The largest galaxy number count to date, the Sloan Digital Sky Survey, corresponds well to the mainstream picture.[21]

Light element production without Big Bang nucleosynthesis (as required in plasma cosmology) has been discussed in the mainstream literature and was determined to produce excessive x-rays and gamma rays beyond that observed.[22][23] This issue has not been completely addressed by plasma cosmology proponents in their proposals.[24] Additionally, from an observational point of view, the gamma rays emitted by even small amounts of matter/antimatter annihilation should be easily visible using gamma ray telescopes. However, such gamma rays have not been observed. This could be resolved by proposing, as Alfvén did, that the bubble of matter we are in is larger than the observable universe. In order to test such a model, some signature of the ambiplasma would have to be looked for in current observations, and this requires that the model be formalized to the point where detailed quantitative predictions can be made. This has not been accomplished.

No proposal based on plasma cosmology trying to explain the cosmic microwave background radiation has been published since COBE results were announced. Proposed explanations are relying on integrated starlight and do not provide any indication of how to explain that the observed angular anisotropies of CMB power spectrum is (so low as) one part in 105. The sensitivity and resolution of the measurement of these anisotropies was greatly advanced by WMAP. The fact that the CMB was measured to be so isotropic, inline with the predictions of the big bang model, was subsequently heralded as a major confirmation of the Big Bang model to the detriment of alternatives.[25] These measurements showed the "acoustic peaks" were fit with high accuracy by the predictions of the Big Bang model and conditions of the early universe.

Plasma cosmology is not considered by the astronomical community to be a viable alternative to the Big Bang, and even its advocates agree the explanations it provides for phenomena are less detailed than those of conventional cosmology[citation needed]. As such, plasma cosmology has remained sidelined and viewed in the community as a proposal unworthy of serious consideration.
"
</snip>

Good grief... will the flood of woo-crap never cease?! :boggled:
 
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http://www.holoscience.com/news/mystery_solved.html "After launch, a spacecraft accepts electrons from the surrounding space plasma until the craft’s voltage is sufficient to repel further electrons. Near Earth it is known that a spacecraft may attain a negative potential of several tens of thousands of volts relative to its surroundings. So, in interplanetary space, the spacecraft becomes a charged object moving in the Sun’s weak electric field. Being negatively charged, it will experience an infinitesimal “tug” toward the positively charged Sun. Of most significance is the fact that the voltage gradient, that is the electric field, throughout interplanetary space remains constant. In other words, the retarding force on the spacecraft will not diminish with distance from the Sun. This effect distinguishes the electrical model from all others because all known force laws diminish with distance."


Sigh... go back to the beginning of the thread (post #5) to see responses to this same cut n' paste job that Zeuzzz pulled there.

Zero points for originality and scientific usefulness... 109 points for using a time-honored woo tactic of cutting n' pasting pseudoscientific garbage from some book that reveals the "truth."

I think I have my answer to that hypothetical question about the flood of woo-crap...
 
Of most significance is the fact that the voltage gradient, that is the electric field, throughout interplanetary space remains constant. In other words, the retarding force on the spacecraft will not diminish with distance from the Sun. This effect distinguishes the electrical model from all others because all known force laws diminish with distance."

Why should the field remain constant? By Gauss's law, that requires not only a charge on the sun, but a volume charge throughout the entire solar system as well. And not just any volume charge, but a particular volume charge. How can such a volume charge in space be confined, and why should it take on that specific distribution? Such basic questions are not asked, let alone answered. This is not a model, it's hand-waving. Again.

The only motivation for the claim that the electric field is constant as a function of distance appears to be that graph showing the field in a discharge tube. But the geometry is fundamentally different: unlike the surface of a sphere at different radii, the cross-sectional area along a cylinder doesn't vary with distance, so applying Gauss's law gives you something different in that case than would exist for our sun. So it looks like the initial assertion actually comes from a fundamental misunderstanding of electricity. Not surprising, really, nor is it surprising that you didn't catch it.

Oh, and the electric force on a satellite in an electric field can come from more than just the charge on the satellite. If the field itself has a gradient (which it would for anything other than one particular volume charge distribution), then electric polarization of the satellite (which will happen because large parts of it are metal) will create a net force as well.
 
It doesn't even make the improbable more probable. Every hypothesis must stand on its own; creationism and ID are the only "theories" I know of that exist as a result of failure of other theories, and we know why that is.
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In a tennis tournament, if you knock out all the top seeds in the first round, the chances of a once-improbable outsider winning is now a certainty. The odds will change.

I recognize this is not a good analogy since a tennis tournament has a closed set of participants.
 
More electric-plasma universe woo!!! Just as the thread was getting on track about the Pioneer Anomaly. Arrrggh... :mad:

Since the woos are going to post links, I might as well too...

Comparisons of Plasma Cosmology to Mainstream Cosmology

Good grief... will the flood of woo-crap never cease?! :boggled:


Since you are so keen to keep bringing up that small wikipedia entry that purports to debunk plasma cosmology, thats have a look at some of the problems with it. As i said before, your best bet to see PC material is not on wikipedia, this site is far less biased.


"Plasma cosmology has been developed in much less detail than mainstream cosmology and lacks many of the key predictions and features of the current models[citation needed].


Yes, indeed, 'citation needed'


Plasma cosmology generally provides qualitative descriptions and no systematic explanation for the standard features of mainstream cosmological theories[citation needed].


No evidence for the proposition, again.


The mass estimates of galaxy clusters using gravitational lensing also indicate that there is a large quantity of dark matter present, an observation not explained by plasma cosmology models.[19]


This is hilarious! Mainstream scientists are saying that plasma cosmology is not viable because it is not based on things that they made up to plug the numbers in their models! The irony.

The fact that plasma cosmology needs no such epicycles such as 'dark matter' 'dark energy' or 'hidden dimensions' to function correctly is a strong strength of plamsa cosmology, definitely not a weakness.


Mainstream studies also suggest that the universe is homogeneous on large scales without evidence of the very large scale structure required by plasma filamentation proposals.[20]



Well, i don’t know what universe the people who wrote this are living in, but it definitely is not this one. Are they seriously saying that there is not large scale filamentation observed in space?

Even in our own milky way the abundance of filaments has largely remained a mystery to conventional astronomers with their gravitational only equations. They seem to be ignoring the large amount of galaxies recently discovered lined up along filamentary paths, In fact, these filamentary structures seem to be everywhere, from large scale to small scale, and are very hard to explain with gravitational equations alone, EM forces and currents have to be employed.

http://www.space.com/scienceastronomy/galaxy_filaments_040607.html
New observations of the center of our Milky Way Galaxy have revealed the origin of radio-emitting filaments that puzzled astronomers for two decades.

The filaments range from 10 to 100 light-years in length and 1 to 3 light-years across. They occur only in a very narrow area, within about 900 light-years of the galactic center, a region crowded with old and new stars.

The filaments emerge from pockets of intense star formation, the new study found. [......]

The exact mechanism that creates the filaments remains to be discovered.

"One possibility is that they are produced by the collision of winds blown off from individual stars," Yusef-Zadeh said.



Who ever has administration rights over this page at wikipedia clearly lacks an in depth understanding of plasma astrophysics, and what its proponents have discovered over the past couple of decades.

* Microwave Generation from Filamentation and Vortex Formation within Magnetically Confined Electron Beams, A. L. Peratt and C. M. Snell, Physical Review Letters, 54, pp. 1167-1170, 1985 (688K).

* Interstellar Neutral Hydrogen Filaments at High Galactic Latitudes and the Bennett Pinch G. L. Verschuur, Astrophys. Space Sci. 227, pp. 187-198, 1995 (776K).

* Filamentary Structures in planetary nebulae (PDF), 2006-07-04, Seminar, Space & Plasma Physics, Royal Institute of Technology, Stockholm

* Filamentary structures in planetary nebulae - Astrophysics and Space Science, Volume 310, Issue 1-2, pp. 65-72, 2007
We have studied small-scale, filamentary features in 14 planetary nebulae and found that some structures are recurrent and shaped like the letters V and Y, with the apex or stem pointing toward the central parts of the nebula. Two such filaments containing dust, one in NGC 3132 and one in NGC 7293, were investigated in more detail. The mass and density of the filaments were obtained from extinction measurements, and their physical properties were derived. We propose that the structures are confined by magnetic fields, and derive magnetic field strengths of about 10‑8 T, in line with earlier estimates. We also estimate the magnitude of the electric currents that we expect are generated in these dynamic systems. We propose a theory where the magnetic fields control the sculpting and evolution of small-scale filaments. This theory demonstrates how the substructures may form magnetized flux ropes that are twisted around each other, in the shape of double helices [Birkeland currents]. Similar structures, and with similar origin, are found in many other astrophysical environments.




The largest galaxy number count to date, the Sloan Digital Sky Survey, corresponds well to the mainstream picture.[21]


What they fail to note that these observations are consistent with both mainstream ideas and plasma cosmology, and that is probably why they do not say how this observation actually falsifies plasma cosmology.


Light element production without Big Bang nucleosynthesis (as required in plasma cosmology) has been discussed in the mainstream literature and was determined to produce excessive x-rays and gamma rays beyond that observed.[22][23] This issue has not been completely addressed by plasma cosmology proponents in their proposals.[24] Additionally, from an observational point of view, the gamma rays emitted by even small amounts of matter/antimatter annihilation should be easily visible using gamma ray telescopes. However, such gamma rays have not been observed. This could be resolved by proposing, as Alfvén did, that the bubble of matter we are in is larger than the observable universe.


This is what you get for trusting wikipedia. Light element production has been answered by many plasma cosmologists, I think that Lerners galaxy production method is favoured at the moment, Arp has proposed another method, others have proposed a stellar origin, and there are many others that are all viable contenders. I am very surprised they have not included this work on that page, as it appears to answer all the 'problems' they are saying exist. Heres a few;

* Magnetic Vortex Filaments, Universal Invariants and the Fundamental Constants IEEE Transactions on Plasma Science, Special Issue on Cosmic Plasma, Vol. PS‑14, No. 6, Dec. 1986, pp. 690‑702.

* Force-Free Magnetic Filaments and the Cosmic Background Radiation IEEE Transactions on Plasma Science, Vol.20, no. 6, Dec. 1992, pp. 935-938.

* Galactic Model of Element Formation IEEE Transac*tions on Plasma Science, Vol. 17, No. 3, April 1989, pp. 259‑263.

* Magnetic Self-Compression in Laboratory Plasma, Quasars and Radio Galaxies - Laser and Particle Beams, Vol. 4, Pt. 2, (1986), pp. 193-222.




No proposal based on plasma cosmology trying to explain the cosmic microwave background radiation has been published since COBE results were announced. Proposed explanations are relying on integrated starlight and do not provide any indication of how to explain that the observed angular anisotropies of CMB power spectrum is (so low as) one part in 105. The sensitivity and resolution of the measurement of these anisotropies was greatly advanced by WMAP. The fact that the CMB was measured to be so isotropic, inline with the predictions of the big bang model, was subsequently heralded as a major confirmation of the Big Bang model to the detriment of alternatives.[25]



Again, they seem to be ignoring the solutions offered to these problems.

* Radio Absorption by the Intergalactic Medium The Astro*physical Journal, Vol. 361, Sept. 20, 1990, pp. 63‑68.

* Confirmation of Radio Absorption by the Intergalactic Medium Astrophysics and Space Science, Vol 207, 1993 p.17-26.

* Intergalactic Radio Absorption and the COBE Data Astrophysics and Space Science, Vol.227, May, 1995, p.61-81

* Evidence for a Non-Expanding Universe: Surface Brightness Data From HUDF - Proceedings of the First Crisis in Cosmology Conference, AIP proceedings series 822, 2006, p.60-74.




Plasma cosmology is not considered by the astronomical community to be a viable alternative to the Big Bang. As such, plasma cosmology has remained sidelined and viewed in the community as a proposal unworthy of serious consideration.[/i]"



Well, I largely agree with that. A shame that there is so much resistance it, but the same is true with any new area of science. The trouble is that there is never any substantial, consistent reason proposed to dismiss Plasma cosmology, and so the scientists that support it seem to be growing in number every year.

I am still waiting for your source that refutes plasma cosmology, apart from wikipedia. If you cant find one, ask yourself why that is.

This paper sums up the comparison between the two cosmologies in a far less biased way than wikipedia.

http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?tp=&arnumber=1265349&isnumber=28301
Two world systems revisited: a comparison of plasma cosmology and the Big Bang
Lerner, E.J.
Lawrenceville Plasma Phys., NJ, USA;

This paper appears in: Plasma Science, IEEE Transactions on
Publication Date: Dec. 2003
Volume: 31, Issue: 6, Part 1
On page(s): 1268- 1275

Abstract:

Despite its great popularity, the Big Bang framework for cosmology faces growing contradictions with observation. The Big Bang theory requires three hypothetical entities-the inflation field, nonbaryonic (dark) matter, and the dark energy field-to overcome gross contradictions of theory and observation. Yet, no evidence has ever confirmed the existence of any of these three hypothetical entities. The predictions of the theory for the abundance of /sup 4/He, /sup 7/Li, and D are more than 7/spl sigma/ from the data for any assumed density of baryons and the probability of the theory fitting the data is less than 10/sup -14/. Observations of voids in the distribution of galaxies that are in excess of 100 Mpc in diameter, combined with observed low streaming velocities of galaxies, imply an age for these structure that is at least triple and more likely six times the hypothesized time since the Big Bang. Big Bang predictions for the anisotropy of the microwave background, which now involve seven or more free parameters, still are excluded by the data at the 2/spl sigma/ level. The observed preferred direction in the background anisotropy completely contradicts Big Bang assumptions. In contrast, the predictions of plasma cosmology have been strengthened by new observations, including evidence for the stellar origin of the light elements, the plasma origin of large-scale structures, and the origin of the cosmic microwave background in a "radio fog" of dense plasma filaments. This review of the evidence shows that the time has come, and indeed has long since come, to abandon the Big Bang as the primary model of cosmology.
 
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More electric-plasma universe woo!!! Just as the thread was getting on track about the Pioneer Anomaly. Arrrggh... :mad:

Since the woos are going to post links, I might as well too...
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It would be nice if you didn't use ad hominems.
 
When you don't have good evidence, attack your opponent. It is a time tested scientific method.
 
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In a tennis tournament, if you knock out all the top seeds in the first round, the chances of a once-improbable outsider winning is now a certainty. The odds will change.

I recognize this is not a good analogy since a tennis tournament has a closed set of participants.

Indeed. In a tennis tournament you have a chosen set of entrants, one of which must be the ultimate winner. In dueling scientific theories the "winner" can only be determined from evidence that is beyond the control (ideally) of the theories or theorists, and it might be that evidence is uncovered which determines that none of the entrants is such a winner. "Odds", as such, have no place in the scientific method, because no one has a way of computing a valid probability; if they did, there would be no point for a tournament in the first place.
 
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I recognize this is not a good analogy since a tennis tournament has a closed set of participants.

It's not just not "good" - it illustrates precisely the opposite of what you want it to.

The world is not a tennis tournament - we don't know who the contestants are, or how many there are, or even what the rules of the game are. That's why this kind of logic fails completely.
 
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Not an Ad Hom to call this woo.

It's on its face stupid, revealing a complete lack of understanding of the evidentiary underpinnings of our present understanding of physical laws and a pathetic contempt for those who are smart enough to comprehend that.
 
Not an Ad Hom to call this woo.

It's on its face stupid, revealing a complete lack of understanding of the evidentiary underpinnings of our present understanding of physical laws and a pathetic contempt for those who are smart enough to comprehend that.
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There is a difference between describing a theory as woo, and calling the proponents woos. The latter is an ad hominem.
 

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