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| View Poll Results: Should nucleosynthesis be dropped as a "pillar of the BB?" | |||
| Drop nucleosynthesis as a pillar of the BB |
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2 | 40.00% |
| Nucleosynthesis explaining 0.1% of the mass of the universe explains how it was created |
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3 | 60.00% |
| Voters: 5. You may not vote on this poll | |||
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Cheers, Lyndon PS. How did you vote for the 'pillar of the universe?' |
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papageno wrote
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Cheers Lyndon. PS. How did you vote on the Pillar question? |
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Also, Dark Matter is required for BB theories to work, but Dark Matter is never taken into account to describe the theory itself. To quote myself from my poorly named SRT vs. LET thread: Quote:
And so nobody is left out, Quote:
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there is no governor anywhere |
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Which would be nonsense if the relation was not simply a numerical coincidence. If it really expressed some physical relation, the units would balanced on both sides and equality would hold independently of the system of units. Ashmore tried to fix this problem by introducing, completely ad hoc, the density of electrons in intergalactic space. The units now balance properly, however there is no justification for using the electron density (except for an attempt to get the right numbers). Quote:
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These alternatives need to do at least as good as the currently accepted theory and stand on their own ("I'm right because he is wrong!" does not work in science). Quote:
Ashmore's "theory" is nowhere near as well supported as the BB Theory: it is inconsistent with well established physics, it deals with much narrower range of phenomenology, and is far from being as accurate. Ashmore has not been able to provide any experimental results to support his ideas. Whether modern cosmology needs an ad hoc dark matter is irrelevant to the validity of Ashmore's ideas. If he used the same standards he uses for the BBT, he would have abandoned his "tired light theory" a long time ago. Quote:
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papageno "Why waste time learning, when ignorance is instantaneous?" - Hobbes (Calvin and Hobbes) "It's all about context!" - Vince Noir (The Mighty Boosh) "I've never heard of such a brutal and shocking injustice that I cared so little about!" - Zapp Brannigan (Futurama) "...because the logic of the lines traced from reality is as poor of aesthetic value as it is strict in consistency. " - Paolo Bozzi (Naive Physics - free translation) |
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Microsoft is over if you want it. The bar has been lowered for the promotion of ATM ideas; the bar for the acceptance of ATM ideas must remain high. I now officially condemn CM's skits as smartaleck, ignorant, sophomoric, inflammatory and and a poor reflection on the level of discussion in BAUT. -- Bob Angstrom |
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there is no governor anywhere |
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Tired light describes what it describes. If it happens to prove empirically that space is not expanding, then BB's greatest assumption is pulled out from under it. Since there is no direct evidence of this expansion, and no direct evidence of Dark Matter, BB cannot yet have an assumed accuracy. Quote:
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I would love to continue in the Paradox thread if it is not closed, so that we can discuss the problems in Ashmore's theory. I've read about half of this entire thread, and many of you seem to be misunderstanding IG plasma physics (which I'm sure to be doing as well) and are simply disagreeing with Ashmore because you refuse to accept basic plasma principles. I only suggest this because the same erroneous allegations are still being made, so it would appear the matter is still up for grabs.
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there is no governor anywhere |
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there is no governor anywhere |
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Note to akirabakabaka: Please read Ashmore's paper and the critiques of it very carefully. Be very careful about the handling of units, that is lyndonashmore and Lunatik's biggest problem!
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Microsoft is over if you want it. The bar has been lowered for the promotion of ATM ideas; the bar for the acceptance of ATM ideas must remain high. I now officially condemn CM's skits as smartaleck, ignorant, sophomoric, inflammatory and and a poor reflection on the level of discussion in BAUT. -- Bob Angstrom |
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H = hr/m. In order for this to be a proper equality, left hand-side and right hand-side must have the same physical units. This is not the case for the first "paradox". Quote:
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If you are really interested, read the thread you linked, and you will see for yourself that Ashmore's "theory" has no physical basis. Quote:
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His "double Mossbauer" is non-sensical from a physical point of view. He has no mechanism for energy loss due to scattering, and preserving the image and consistent red-shift of the objects at the same time. Quote:
Ashmore has no physical mechanism that works as he claims. Hence, his "tired light theory" has no foundation. Quote:
Not even Ashmore could come up with any evidence. Quote:
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We have explained what is wrong with his ideas.
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papageno "Why waste time learning, when ignorance is instantaneous?" - Hobbes (Calvin and Hobbes) "It's all about context!" - Vince Noir (The Mighty Boosh) "I've never heard of such a brutal and shocking injustice that I cared so little about!" - Zapp Brannigan (Futurama) "...because the logic of the lines traced from reality is as poor of aesthetic value as it is strict in consistency. " - Paolo Bozzi (Naive Physics - free translation) |
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I am only on page 16 of the novel that is the Ashmore's Paradox thread, so forgive me if I am bringing up long-dead arguments here. But so far all I see is a circular debate based on the (flawed) claim that electrons don't oscillate in IG plasma, which they do. The main objection so far is that he is misapplying theorems. It is refuted that Mossbaur et al. cannot be applied, but considering the entirety of Ashmore's paper it appears that observation suggests it can be applied. It is wrong to say specifically the Mossbaur effect because the circumstances are slightly different (there is recoil resulting in energy loss). It has been suggested in the thread that a new term be coined for this effect, the 'double Mossbaur' seems to be the most popular. The resonant/non-resonant argument is the only compelling dissent so far, and has not yet been handled as of page 16, so I'll get back to you on that one!
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As far as I can tell this has always been a condition of his theory. The problem is that his website initially claimed H=hr/m, which is not entirely accurate, but a generalized form. It seems reasonable that he was trying to protect his work while he waited for his paper to be accepted for publication (which he already explained to be the case). Unfortunately a misconception was created because of this. Quote:
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So I'll continue reading the Paradox discussion hoping some new substance comes out of it.
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I see the Followers of the BB cannot answer the point about eta having to have two mutually exclusive values to explain the abundances of light elements. As an arguing tactic they are trying to divert the discussion. I am happy, nay ecstatic, to discuss my theory, but not here on this thread. In fact, I would like BA to make the mutual exclusivity of eta in the BB a ‘sticky’ until followers of the BB can come up with an answer on the ATM topics.
Let’s get back to the original point. How can nucleosynthesis remain a pillar of the BB when it only explains a wart on the nose of the universe. Cheers, Lyndon |
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Microsoft is over if you want it. The bar has been lowered for the promotion of ATM ideas; the bar for the acceptance of ATM ideas must remain high. I now officially condemn CM's skits as smartaleck, ignorant, sophomoric, inflammatory and and a poor reflection on the level of discussion in BAUT. -- Bob Angstrom |
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There is a significant discrepancy in the predictions, as I understand the matter, which is still not resolved. That is, not all the predictions fit well with experiment. Either there is a problem in the models, or a problem in the measurements, but something is not quite fitting. The primary reference I have been looking at is by Brian Fields and S. Sarkar: Big Bang Nucleosynthesis (preprint also at astro-ph/0406663). The abstract is up beat, but within the paper there is discussion of a nagging problem. The problem shows up in figure 20.1 of the paper; a concordance of estimates for Li7, H2 and He4 is not found within the two sigma measurement errors. It does, however, fit within the two sigma systematic error measurements. Basically, this means that there is almost certainly a systematic source of error. This is not all that surprising, given what they are trying to measure; but it is still a discrepancy. Exploring systematic errors is often a fruitful line of research. It can lead to better models for the measurements, or perhaps even for the nucleosynthesis model. Both possibilities are considered in the paper. Page 6 of the paper puts it thus: Quote:
Credible discussion of the real discrepancy will tend to be diluted as long as there are such errors being made in the thread. But it is worth pointing out that buried in the nonsense there may yet be a pearl. Cheers -- Sylas [[ Edited to moderate the tone; content unchanged. Also corrected to replace nucleotides with nuclei. (d'oh) ]] |
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Well, there are discrepancies and then there are discrepancies. Take the following two bold and condescending assertions by lyndonashmore:
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I would contend that any serious high school student would be able to conclude from the above two ashmore quotations that our highly (self-)esteemed Mr. Ashmore really doesn't know what he's talking about and is making this stuff up as he goes along. It is therefore doubly curious that the uber-skeptical akibakabaka would do his abrasively best to denounce and belittle every serious astronomer, astrophysicist, and cosmologist who has contributed to their field in the past 80 years, while inexplicably doggedly defending the dubious "theories" of lyndonashmore. But to each his own, I guess.
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Everyone is entitled to his own opinion, but not his own facts. |
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[removed unecesary line of questioning]
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Feynman >~~~~< Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. Religion is a culture of faith; science is a culture of doubt. |
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You don't need to persuade me of the discrepancies that arise in the minds of certain thread contributors, and you've got basically no hope fixing it. Some people just don't get physics. It's still worthwhile to point out those problems, but then there are also the second set of discrepancies. Does anyone have a comment on the actual discrepancies mentioned in Fields and Sarkar? These guys are solidly mainstream, and fundamentally they consider that nucleosynthesis does remain good evidence for big bang cosmology. And they also describe a discrepancy between predictions and measurements, and some possible resolutions. That's the only real discrepancy, and I think it is actually quite interesting. Cheers -- Sylas |
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You forgot this basic misconception, Sylas.
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Its wrong. Thats all. Proof beyond doubt that nucleosynthesis is wrong and yet you cannot accept it. You had the theory, tested it against experiment and the experiment showed the theory to be wrong. Its like 1984, "the party says the BB is correct" "But it goes against experimental results" The BB party is correct "But the eta values are mutually exclusive" "Doesn't matter, the BB party is correct". "But we need inflation to get the correct results and nobody knows what it is or where it comes from" "Doesn't matter, the BB party is correct". "But we need all this dark matter and nucleosynthesis doesn't explain this" "Doesn't matter, the BB party is correct". "OK, if I want to get on in the party then I'll say it, the Bb party is corrrect" "Ah but you are still THINKING that the BB is wrong" etc etc. When observation goes against theory, you go with the observations. To say it is almost certainly systematic is rediculous. Do you realise what it means when two values' 2 sigma's don't overlap? For one observation to be that far out by chance is one in 20. For both is 1 in 400. "Ah but you are still THINKING that the BB is wrong" Cheers, Lyndon |
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Cougar, the whole point of your post is to spread FUD (fear, uncertainty, doubt). Why do you bother posting at all when you don't say anything?
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You didn't say a single thing in your entire message. Quit wasting our time, please.
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there is no governor anywhere |
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The first two misconceptions usually arise from an obdurate refusal to show a bit of basic common sense in reading a technical paper. The third misconception is more subtle. It arises from a basic misunderstanding in statistics. What a two sigma error really means is a 5% chance of getting this result given that that the model is correct. We can describe this error mathematically. Let M be the event that the model is correct, and R be the event that observe a result two sigma or more away from the model prediction. This means Pr(R|M) = 0.05. The error is to read this as Pr(M|R) = 0.05. Understanding this third point is important for a proper understanding of the meaning of error bars; but it does not make a great deal of difference in this particular instance. The measurement is sufficiently far out that we can be confident of some kind of systematic error. There is no way in the result to identify the source of the error. That why real scientists identify a range of possible resolutions (systematic measurement error; systematic model error; or a new theory in physics). Lyndon only recognizes the last of these, and even then he is only capable of seeing this as "big bang physics replaced" without even considering in passing "particle formation physics replaced". This kind of basic error in elementary physics pretty much dooms this thread for credible discussion of the real problems. Cheers, Sylas |
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Knowledge is a curse, but ignorance is worse |
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Cheers, Lyndon |
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Knowledge is a curse, but ignorance is worse |
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Everyone is entitled to his own opinion, but not his own facts. |
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Actually, Sylas, it appears this discrepancy between BBN and CMB data was solved four years ago, and there is no longer any discrepancy. At least that's what this site tells us....
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Everyone is entitled to his own opinion, but not his own facts. |
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Fram wrote
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Nice try - didn't work. cheers, Lyndon Actually Fram the technical wording for this 'inverse systematic uncertainties' is 'tension in the results'. |
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Tut Tut Cougar! Cheers, Lyndon |
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