Ziggurat
Penultimate Amazing
- Joined
- Jun 19, 2003
- Messages
- 61,868
cathode refrigeration.
I like that term. Rather makes plain the absurdity of his proposal.
cathode refrigeration.
This is rather obviously wrong, Michael. Look at the sun sometime. I suggest you use a filter to avoid hurting yourself. Very little of the sun's light comes from the corona.
Everyone knows this (well, except you), and it's rather easy to confirm by direct observation. You don't even need any fancy scientific equipment. Should be exactly the sort of experimental evidence you're so fond of, yet you are apparently ignorant of it. Strange.
Hell, look at my avatar. Ponder upon it. It's a clue. Can you figure it out?
And how much mass separation should we expect?
It's actually a rather simple thermodynamics problem, Michael.
You can quantify it rather easily if you assume no convection.
Since convection would serve to decrease mass separation, such an estimate would only be an upper bound, but it would be a good starting place. So what amount of mass separation do you expect? Let's see if you can quantify it.
If you ask nicely, perhaps I'll even do the mass separation calculations for you.
Which filter are you using, a h-alpha filter, visible light filter, or one sensitive to helium emissions like the SOHO 304A filter?
It's strange to me that you only seem concerned with visible light.
All that demonstrates is that the corona also emits while light as well as other wavelengths.
Every plasma is mass separated by the element.
The solar atmosphere is very dynamic however so it's not 100% separation to be sure
It's "simple" to you because you intentionally and artificially *oversimplify* everything.
Since there is convection and lots of movement of particles, it's not as simple as you imagine.
Please do so. Start with Birkeland's concept of voltages and current flow and standard gravity theory.
You can't oversimplify the idea however in your search for quantification.
He created that MHD world you're using today didn't he? What makes you a greater 'expert' on MHD theory than the man that wrote the theory? Alfven was an electrical engineer by trade. He would therefore *NEVER* have claimed that magnetic lines disconnect and reconnect to other magnetic lines.
Sounds like another wonderful distraction if you ask me. I wouldn't try to explain it via *JUST* induction. It's an example of *CIRCUIT RECONNECTION* between the solar surface and the heliosphere and the Earth got in the way.
To 20 million degree? Yep. Name one other method you know of that heats plasma to tens of millions of degrees and can sustain them at those temperatures for hours on end.
He did write all the first chapters of plasma physics and you haven't demonstrated that he was wrong about any of it. You haven't written the last chapter either, so get over it.
That would be akin to his "noisy" plasma caused by particle flow. So what?
Circuits disconnect and reconnect all the time. What's the big mystery?
I don't. I explain it with a change of 'current flow'.
Currents cause plasma flows and magnetic fields.
You mean a short circuit in two plasma streams?
Don't you find it funny that the guy the wrote MDH theory disagrees with you and he himself drew a lot from Birkeland's work?
There is no such thing as "magnetic reconnection". You can't even specifically identify what is unique about the energy release mechanism of "magnetic reconnection" that can be shown to be unique and separate from the following *KNOWN* energy exchange methods in plasma.
A) circuit reconnection (large scale circuit interruption)
B) particle reconnection (small scale particle interactions)
C) induction
Go ahead and explain to us how you know that any energy exchanges we observe in space eliminated any of the above processes in plasma, and how *EXACTLY* how your magnetic reconnection process is unique?
There's a phrase concerning horses, leading, water, and drinking that springs to mind ...
From your model of mass separation please show your derivation of the % of elements in each layer.The short answer is "mass separation".
The helium chromosphere and hydrogen corona are both considerably hotter (and emit more photons) than the other layers of the atmosphere. More importantly, they are also sitting on top of all the other plasma layers and therefore they tend to absorb and emit the most light. Spectral analysis of the upper atmosphere is therefore going to show that the upper layers of the sun are composed of primarily hydrogen and helium.
All of the spectral percentage numbers *assume* that there is little or no mass separation of elements in the solar atmosphere and therefore they interpret these spectral numbers to be indicative of the surface of the photosphere.
and you are not a crackpot are you MM?
What does the persistent, and consistent, lack of any replies to polite questions about quantification (of the 'Sun has a solid surface' idea) add credence to, Z?What reply to this do you expect to this derogative pejorative?
I could equally ask; Are you (due to your sycophantic belifef in the statistically insignifficant 'proofs' of dark matter) a crackpot RealityCheck?
The ad-homs employed by some in this thread (not so much you to be fair, RC) are disgraceful, and only add credence to the opposing argument.
I am merely asking whether MM fits the definition of a crackpot.What reply to this do you expect to this derogative pejorative?
I could equally ask; Are you (due to your sycophantic belifef in the statistically insignifficant 'proofs' of dark matter) a crackpot RealityCheck?
The ad-homs employed by some in this thread (not so much you to be fair, RC) are disgraceful, and only add credence to the opposing argument.
Do you have the list of the "statistically insignifficant 'proofs' of dark matter"?
I would be interested in them since I have never heard of any statistically insignifficant evidence for dark matter.
Rather paradoxically, you do not understand that the links are to actual observations that are not statistically insignificant.Rather paradoxically, you need not look any further than your very own signature to find the "statistically insignifficant evidence for dark matter" I am referring to!
Dark matter, or rather Non-baryonic matter, is by definition different from the ordinary matter observed anywhere on earth, and the paper does nothing to prove the existence of such matter.
It actually proves something quite different: that in the case of this particular pair of colliding galaxies, the greater part of the mass is associated with the galaxies and not with the hot intracluster gas. This evidence is that gravitational-lensing measures of total mass outline the concentrations of galaxies, which are physically separate from the main hot gas concentrations.
So, how do Clowe et al get from what was actually indicated to what they claimed? Only though a big assumption, which is in no way supported by their data.
The major assumption is that all of the baryonic, ordinary matter is in the form of hot plasma or bright stars in galaxies. The paper shows that the total amount of gravitating matter, as measured by gravitational lensing, does not correlate with the amount of hot plasma, as measured by x-rays. Therefore, the authors argue, the gravitating matter is instead associated with the galaxies. Since the gravitating mass is much greater than the mass in easily-visible stars, and by assumption, there is no other baryonic matter, the mass must be non-baryonic or dark matter.
The flaw in this argument is this assumption that all the ordinary matter in galaxies is in easily-visible, bright, stars. Instead, most of the mass of galaxies may well be in the form of dwarf stars, which produce very little light per unit mass, in other words have a very high mass-to-light ratio. Several studies of galaxies using very long exposures have shown that they have 'red halos', halos of stars that are mostly red dwarfs. Other studies have indicated that the halos may be filled with white dwarfs, the dead remains of burnt-out stars. In addition, there is evidence that a huge amount of mass may be tied up in relatively cool clouds of plasma that do not radiate much x-ray radiation, and would be in closer proximity to the galaxies than the hot plasma.
The Clowe papers in no way contradict these possibilities, so in no way prove the existence of dark, or non-baryonic matter. Instead, they assume that any mass associated with the galaxies that is not in bright stars is non-baryonic, dark matter.
They assume what they seek to prove.
If you take one of those [dark matter] anomalies and ask, what's the probability this happened by chance, it will be very very small (that is what's called a posteriori statistics, and it's wrong and misleading). But if you only ask, what's the probability there will be some anomalies, it's basically 1.
All of the above was not answered in your post. You assumed that the astronomers assumed that most of the matter in a galactic cluster is in the IGM (not in the galaxies or stars) was wrong. That is not right.Perhaps. Or not. Lets not try to drive needless dividing lines between people on intellectual capacity, eh?
I think all of the above has been aswered before RC.
Zeuzzzzz, that would have been a reasonable mainstream hypothesis 30 years ago. In the intervening decades, astronomers searched for exactly these sorts of "dark baryons" with extremely sensitive probes. Any guess at the results of these searches?
1) Decades of microlensing surveys have explicitly counted the number and mass distribution of brown dwarfs, white dwarfs, black holes, free-floating planets, etc. There are not anything like enough of such objects to give the explanation you propose.
2) We have surveyed the Universe in all wavelengths, not just x-ray. "Cool clouds of plasma" will (a) emit light in some band or another and (b) absorb light from background objects. There have been fairly-comprehensive surveys looking for such cool plasmas and gases. Guess what, Zeuzzz? There is *not*, as you want there to be, five times as much of it as expected.
3) This mysterious "cool plasma" you're inventing would not remain cool during a galaxy or cluster collision. Sorry, there is no evidence that colliding galaxies suddenly appear to have 5x as much visible gas.
Seriously, Zeuzzz---this is what we mean when we say "we're not dogmatically attached to non-baryonic dark matter". Once upon a time, we didn't know what the mass components of the Universe were; all options were on the table; astronomers measured each of the components very carefully and because of those measurements we know that the remainder is non-baryonic.
This is also what we mean by saying "learn a bit about the field before you criticise it". Microlensing surveys are not some obscure piece of trivia, they're standard knowledge among astrophysicists.
And again you cannot read. Yes, Alfven created MHD, and in MHD reconnection cannot happen!
I am not a "greater expert" on MHD, I am claiming that in the approximation theory MDH (which is an approximation of plasma physics, do you know which approximations are made?) reconnection cannot happen.
Oh, boohoohoo, I give you some observations, which are totally in agreement with what one expects for reconnection.
However, as you do not believe in reconnection,
I would like to know how you explain all these observations.
But do we get anything, of course not, because MM does not have a clue how to do all this using his "circuit reconnection" and his "induction" and stuff.
Colour us amazed at some point, MM, and show us a real model, which qualitatively and quantitatively shows, that your ideas are indeed working.
You might even get invited to a reconnection workshop I am planning to organize to look at the basics of RX, which might well include some of your heros like Falthammar, Heikila etc.
Maybe not that much, but one can put a lot of energy in the electrons by the dissipation of the turbulence.
Why would I want to prove him wrong? What's your obsession with getting Alfven proved wrong?
Some of his ideas do not work, his unwinding flux tube does not describe the same phenomenon as those that the Kaastra model of flares is based on. And indeed, I have not written the last chapter on plasma physics, I am most definitely not clever enough for that.
Turbulence is not going to explain a million degree coronal loops being sustained for hours on end. An electrical circuit could explain a self luminous thread in plasma that is sustained over hours. You can observe this same process in any ordinary plasma ball. It's a *VERY* basic current carrying process in plasma.Turbulence is made of plasma waves at large scales, until they reach the particle scales on which they can dissipate. It has nothing to do with plasma flow. I will have to look up how Alfven defines his "noisy" plasma (unless you want to give me a definition).
The big mystery is that you have never posted a real model describing how, instead of reconnection, your circuits can explain the easiest part of what we dumb-asses call reconnetion,
Astronomers have measured that the amount of gas in a galactic cluster is about twice that of the galaxies in the cluster.
There's a phrase concerning horses, leading, water, and drinking that springs to mind ...
Circuit reconnection can happen in MHD theory. Particle reconnection can happen too. Magnetic reconnection cannot happen because magnetic fields lack physical substance and they form as a full and complete continuum, without beginning, and without end. This is straight out of standard electrical engineering and Alfven was first and foremost an electrical engineer. He certainly understood that magnetic lines in a continuum could not "disconnect" or "reconnect" in any physical way.
Then why in the world would you call this energy exchange process between two flowing "circuits", "magnetic reconnection"? It's irrational IMO.
But I do believe in "reconnection". I believe in "circuit reconnection" and "particle reconnection", just not "magnetic reconnection". I reject that notion just like Alfven, for undoubtedly the exact same reason. Many electrical engineers reject "magnetic reconnection", but not all type of 'reconnection'.
Circuit reconnection between the heliosphere and the solar surface and the Earth got in the way and became a "conductor".
So what if that is all true? Alfven also rejected your magnetic reconnection theory and he did know how to make it work with circuits and particles and he explained it in great detail in many of his papers, some of which I have cited and posted for you, both here and BAUT as ManInTheMirror.
Why? What purpose would that serve you personally? Do you think Alfven could not have done it only because I may or may not be able to do so to your personal level of satisfaction? What does any of this have to do with me or my abilities or lack thereof?
One can put a lot of energy in an electrical discharge too, and one can sustain that energy over long periods of time, times consistent with hour long coronal loop activities. Turbulence comes and goes. Circuits disconnect and reconnect on much longer timelines.
Because one of you must be wrong, you cannot both be right. Either magnetic reconnection is pseudoscience as he claimed, or it's a real process as you seem to think. Both of you cannot be correct. One of you is wrong. One of you is right. My money is on Alfven, the guy with the Nobel prize in plasma physics, not some self proclaimed non-expert that fancies himself as smarter than Alfven on a critically important aspect of MHD theory and electrical engineering theory.
Then maybe you should reconsider Alfven's position on electrical currents in space? What does that sig line of yours say again about keeping an open mind?
Turbulence is not going to explain a million degree coronal loops being sustained for hours on end. An electrical circuit could explain a self luminous thread in plasma that is sustained over hours. You can observe this same process in any ordinary plasma ball. It's a *VERY* basic current carrying process in plasma.
Alfvén (unfortunately) also lost all his money in a pyramid scam. Are you going to do the same, because he did that?
Maybe it is. Maybe it is not. You still need to find another factor of 50 or so.http://www.scitech.ac.uk/PMC/PRel/STFC/Universe.aspx
Maybe it's four times as much?
How do you know any of it is actually contained in exotic, non baryonic forms of matter?