Roaming magnetic fields?

[Cosmic Dick]

Have any of you noticed this?

http://news.nationalgeographic.com/news ... eds-fermi/

CD

[Osmosis]

Where can I buy some of this "magnetic field seed"? What drivel! Science magazine should change their name to "Fantasy Science Fiction". Oh, I think that name is already taken. National Geographic, stick with factual stories about
termite mounds and lions and stuff.

[junglelord]

I guess, neither of you caught the fact, that they called an EU theory into play to account for magnetic fields.

The two leading theories: The seed fields were created by the movement of charged gas in protogalaxies, or they were produced outside of galaxies by some unseen processes in the early universe.

Sure they threw in the insanity clause, but hey they admitted no magnetic field occurs on its own, it needs an electric current.

[Solar]

Not only that but it seems as if these guys are still working under the "space" as an absolute "void" mentality. With the ubiquity of "charged particles"/plasma what direction would the instrument be pointed wherein the magnetic field(s) of a tenuous plasma would not be found?

Whether between stars (ISM), or between galaxies, or between entire galaxy clusters the answer is ... None.

According to the theory, primordial seed fields could have been created from charged particles spit out during violent events such as supernovae.

A "seed field" corresponds to the "dark molecular clouds" i.e. vast regions of "self-organized plasma" in "dark mode" aka "dark nebula", "Local Fluff" etc. They don't want to say it directly but the universe apparently 'recycles' as the same energy that 'Z and Theta-pinches' plasma into stars is 'released' and utilized again. That would be ongoing ... with no "end" in sight. It doesn't make a difference if it is a star or something as large as a galaxy:

"we've found that these weak magnetic fields should be everywhere. They should be outside the galaxies, filling the whole universe, even where there are no galaxies, no clusters, no anything," said study co-author Andrii Neronov of the University of Geneva's...

This is known physics already. The scalability of the electro-plasma dynamic will lead one to large-scale "sheets, voids" and massive "electric currents".

[jjohnson]

Here is the 'artists' rendering' of an active galaxy from the NG News article:

Note the helical filaments winding about the core of the jets... I wonder just who told the artist to put those in there.

Jim

[Osmosis]

Ok ok, a little EU science,along with the fantasy

[Solar]

Ok ok, a little EU science,along with the fantasy

Yeah, one usually has to pull EU/PC out of these puzzled regurgitated announcements and the accompanying 'artist renderings'. It takes an artist to render 'Their' version of cosmology because is isn't real. "Black hole" physics always has to be portrayed because it can't be demonstrated. It usually seems to utilize, or try to abscond with, every other force in order to render the portrayal.

Just as surely as the cosmic background radiation was absconded with in an attempt to support some theoretical hot hadronic era the electric force is subjected to the same kind of behavior here in order to approximate or portray something that doesn't occur.

The most important words in that other article are "... to demonstrate something akin to a black hole..." and "... we create an inexorable and destructive pull similar to what black holes..." All spoken of as if "black holes" were an existent fact.

This is a psychosis of monumental proportions.

[Osmosis]

As long as we don't return to sacrifice,to keep the black hole/dark matter gods, from harming us.

[MGmirkin]

Have any of you noticed this?

http://news.nationalgeographic.com/news ... eds-fermi/

CD

Well, I hadn't heard it phrased QUITE this way (or this ridiculously), but yes, I'd seen this story run on a few sites in the last week or so.

(Magnetic Fields in Spiral Galaxies – Explained at Last? [Without actually EXPLAINING anything, mind you...])
http://www.universetoday.com/2010/04/03 ... d-at-last/

(Magnetic fields in galaxies: I. Radio disks in local late-type galaxies)
http://arxiv.org/abs/1003.3535

They're still in the dark on where magnetic fields in galaxies come from and how they got there. Craziness.

There's basically only two (well, one and a half, maybe) sources of magnetic fields: 1) Electric currents. 2) Permanent magnets (though, even in permanent magnets, the magnetic fields come from collective sub-atomic currents; hence this is more like a 50% answer than a full 100%, if you get my meaning).

I don't see why they're so confused by this. Unless there are a bunch of giant ferromagnetic lumps of iron floating around out there, the magnetic fields pretty much HAVE to come from electric currents of some form or function.

See this post on another thread, and the related links:

(Re: Magnetic Reconnection in Plasma - Stanford Solar Astro Site)
http://thunderbolts.info/wp/forum/phpBB3/v ... 332#p34332

Any freshman who has studied maxwells can prove this BS wrong.

MIT now makes this knowledge freely available to the world of inquisitive laymans, with detailed in your face experiments.
http://ocw.mit.edu/OcwWeb/Physics/8-02E ... /index.htm

The detail, maths and empirical experiments of magnetic field collapse are here.

In addition, feel free to poke around in this class' web pages:

(Classical Electromagnetism - An Intermediate Level Course)
http://farside.ph.utexas.edu/teaching/e ... tures.html

A few favorites:

(Magnetic Monopoles?)
http://farside.ph.utexas.edu/teaching/e ... ode35.html

...the statement that magnetic fields are solenoidal, or that nabla * B = 0, is equivalent to the statement that there are no magnetic monopoles.

In fact, permanent magnetism is generated by electric currents circulating on the atomic scale, so this type of magnetism is not fundamentally different to the magnetism generated by macroscopic currents.

In conclusion, all steady magnetic fields in the Universe are generated by circulating electric currents of some description. Such fields are solenoidal: that is, they never begin or end, and satisfy the field equation nabla * B = 0. This, incidentally, is the second of Maxwell's equations. Essentially, it says that there is no such thing as a magnetic monopole.

(Helmholtz's Theorem)
http://farside.ph.utexas.edu/teaching/e ... ode37.html

steady electric and magnetic fields cannot generate themselves. Instead, they have to be generated by stationary charges and steady currents. So, if we come across a steady electric field we know that if we trace the field-lines back we shall eventually find a charge. Likewise, a steady magnetic field implies that there is a steady current flowing somewhere. All of these results follow from vector field theory (i.e., from the general properties of fields in three-dimensional space), prior to any investigation of electromagnetism.

One can also quote NASA's own educational site

(Magnetic Fields)
http://www-istp.gsfc.nasa.gov/Education/wmfield.html

Out in space there is no magnetic iron, yet magnetism is widespread.

It is all related to electricity.

Close to 1800 it was found that when the ends of a chemical "battery" were connected by a metal wire, a steady stream of electric charges flowed in that wire and heated it. That flow became known as an electric current. In a simplified view, what happens is that electrons hop from atom to atom in the metal.

In 1821 Hans Christian Oersted in Denmark found, unexpectedly, that such an electric current caused a compass needle to move. An electric current produced a magnetic force!

Andre-Marie Ampere in France soon unraveled the meaning. The fundamental nature of magnetism was not associated with magnetic poles or iron magnets, but with electric currents. The magnetic force was basically a force between electric currents!

[image]
--Two parallel currents in the same direction attract each other.
--Two parallel currents in opposite directions repel each other.

Here is how this can lead to the notion of magnetic poles. Bend the wires into circles with constant separation:

[image]
--Two circular currents in the same direction attract each other.
--Two circular currents in opposite directions repel each other.

I'll say it again, I'd wager there aren't (m)any giant bar magnets floating around in space. If that be so, the only other option, really, is electric currents.

I just don't see why we keep going round and round with them about this. They seem to keep looking for non-electric sources of magnetic fields.

As far as I'm concerned it's a dead issue. NASA's own web site (above) says so. (I'm sure some will say, or have said, "but it's just a project of one person, not an 'official' NASA publication!" Pfft! True things are true regardless who says them or what official seal of approval they do or don't have. He just happens to say it well in simple, understandable terms.)

Best,
~Michael Gmirkin