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(For readers):... I mean don't get me wrong he has been a laughing stock since the JREF days when he embarrassed himself about MRx, though 1=0.5 and so many other occasionsions where he comprehensively lost the argument.
Its a little tricky to follow that I think (namely because of the web based presentation medium in 2D).Well when I thought it was safe until another Scott error pops up!
From his 2015 paper;
...
Scott has confused the vector representation of B with that of the basis vectors Ρ, Φ and Z.
For example the component of the magnetic field Bθ makes an angle θ with the z-axis, not as represented in the diagram the angle Φ, which is the angle between the projection of the vector on the x-y plane and the x-axis.
The geometrical illustration of r, θ and z with P, Φ and Z is:
...
For any vector field A in cylindrical coordinates such as the magnetic field B;
A = ArΡ + AθΦ + AzZ
More importantly Scott should take a crash course in vector algebra in particular the geometrical representation of vectors in different coordinate systems.Its a little tricky to follow that I think (namely because of the web based presentation medium in 2D).
However, it looks like Scott needs to go back and brush up on his engineering Tech Drawing skills on geometric projections .. or at least come out of the dark ages and use a modern day CAD package which performs projections, rotations and translations.
It appears that “Captain Courageous” who gave me the cold shoulder in this thread before his suspension took offence to my post by creating a thread in the safety of some obscure Reddit subforum to engage in some long range vitriol by associating anyone who disagrees with him as being a boneheaded lying EU hater.Nice diagram! I haven't seen the coloured version before.
I note the heading too .. "What is reconnection in vacuum?"
It is total delusion to believe that Somov is describing anything else but magnetic reconnection in a vacuum.
However, contrary to the case of reconnection in vacuum, in astrophysical plasma of low resistivity we have to add an intermediate state. We call it the pre-reconnection state.
What is the physical meaning of δΨ? - If there were a vacuum without plasma above the plane Q, then the flux δΨ would reconnect at the separator (X1X2) over the two day evolution of the photospheric field sources, and the magnetic field would remain potential without any excess of magnetic energy. In the low-resistivity plasma, changes in the photospheric sources induce an electric current at the separator in the corona. This current in the coronal plasma forms a current layer which will prevent the reconnection of the flux δΨ. Thus, the energy will be accumulated in the magnetic field of the current layer.
By all means do so for both cases.Of course, this could all be clarified for Michael simply by emailing the author. Perhaps I should do that, just to put him out of his befuddlement.
P.S. I have a pdf copy of Somov's book. If anyone would like a copy, let me know.
https://cedarweb.vsp.ucar.edu/wiki/images/c/ce/2016GEM_Sunday_Reconnection.pdfCassak said:The breaking of field lines in vacuum is accompanied by an electric field (it is required from Ampère-Maxwell and Faraday’s laws!)
Michael's agonising nine year 'sentence' of having to wait for his 'missing math formula' ends in four simple statements, eh!?By all means do so for both cases.
I've been eyeing the exchanges at the Reddit subforum.
So Michael has decided if or when Somov shows his section on magnetic reconnection in a vacuum involves wires not plasma channels, Michael will tell him otherwise because no one has shown him the maths.
On the subject of the maths here it is; magnetic reconnection of two magnets in a vacuum where there is absolutely no ambiguity regarding plasma.
...
https://cedarweb.vsp.ucar.edu/wiki/images/c/ce/2016GEM_Sunday_Reconnection.pdf
To expand on this statement a change in the magnetic topology for reconnection to occur requires δB/δt ≠ 0.
The relevant mathematical equations for the Ampère-Maxwell and Faraday’s laws are Maxwell's 4th and 3rd equations respectively which are;
∇ X B = μj + μεδE/δt
∇ X E = -δB/δt
...
I hope the scenario occurs where Michael practises what he preaches; he is going to tell the author of his own book (Somov) the wires in the section on magnetic reconnection in a vacuum are plasma channels because no one supposedly came up with the maths.Michael's agonising nine year 'sentence' of having to wait for his 'missing math formula' ends in four simple statements, eh!?
(Meh .. its about the same as an average sentence at Guantanamo, I suppose ...)
Excellent.Dear Ian,
Many thanks to you for your kind letter.
Concerning magnetic reconnection in vacuum, I have nothing to add to Fig. 1.3 in
section 1.1.2. -- Reconnection like reconnection. Yes, in vacuum. Why not? --
During many years of teaching, I never met a student who did not understand this
ordinary process. They (students) understand easily that the parallel currents are
external currents relative to a reconnection region, for example, the vacuum tube
in the laboratory experiments Frank A.G. et al. in Moscow.
I guess that the Individual, which is claiming that the vacuum reconnection is
impossible, simply does not want to understand this simple but real case.
Reasons? - I do not know.
Well, unfortunately or fortunately, I am very busy. Together with one of my post-
graduate student, Pavel Gritsyk (very talent person), I have to complete work on
the thermal (T_e ~ 10 keV) runaway electrons and hard X-ray polarization in solar
flares.
Another young college, Leonid Ledentson (also very good scientist), writes the
text-book (the lectures) on the classical background of plasma astrophysics. So, he
is also busy. Anyway, I ask him to read carefully the web-site mentioned in your
letter. I hope he will find something useful in critics of me.
Thank you once again for your letter. With kind regards and best wishes,
Boris
03.05.2019
And that's from 10 years ago too, eh?A quote from Tim T is in order, again;
The simple truth is constantly obvious. You cannot & will not consider anything that contradicts your preconception, despite the fact that you actually know nothing at all about the topic at hand. You are simply intolerant to anything that contradicts your preconceptions. The second sentence makes that plain. You "don't see how", and yet you don't even know what is being measured".
Just as he did earlier on in the 'Electric Plasmoid' thread (here) when I pointed out the humour of his attributing Smithi's words as being his own ... whereupon Michael then completely deleted the offending misquoted text from his original post .. which then made my post pointing out the error look dishonest....
One of the many reasons Michael was banned from Brian Koberlein's site was that he took one of my responses and edited out all the relevant detail that refuted his post which was then published at Tbolts and savaged.
I like this quote from ianw16 .. (thanks Ian):
And that's from 10 years ago too, eh?
Goes to show how hard Michael has worked on spreading his legendary persistent ignorance and behaviors regarding such topics!
In a vacuum, reconnection is a trivial process, but in a plasma atmosphere such as the Sun's............
Wow! ..... As I said earlier, I've already emailed Somov. Either you knock off the name calling or I will ban you for awhile. It's your call.
I find all of the nonsense 'induction' argument being propagated specifically by Michael, as being quite amusing. Both sjastro and I have been around this exact same 'Somov' reconnection loop before here at CFs, (as have many other folk elsewhere), but I think our CFs thread was deleted (yet again) due to Michael's all-too-frequent abuses(?)
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