Magnetism

[seasmith]

Perhaps it would be helpful to introduce the term:
Magnetic Super Domain into the lexicon.

… structure is characterized by a large central domain with an average magnetization that points in one of the four diagonal orientations and thus by the corresponding average magnetization vector, mav. Areas of the cells with the same orientation of mav could then be referred to as magnetic super domains (SDs) separated by super domain walls (SDWs).

http://www.google.com/url?sa=t&rct=j&q= ... xU97DznXxA


Which on a nano-scale probably has a correspondence with Superparamagnetism (SPM)

For superparamagnetic particles, the net magnetic moment in zero field and at T >0K, will average to zero. In an applied field, there will be a net statistical alignment of magnetic moments. This is analogous to paramagnetism, except now the magnetic moment is not that of a single atom, but to an SD particle containing 105 atoms. Hence, the term superparamagnetism, which denotes a much higher susceptibility value than that for simple paramagnetism.

http://www.irm.umn.edu/hg2m/hg2m_d/hg2m_d.html
http://www.universetoday.com/85002/permanent-magnet/


For domain interactions, at any scale, the Barkhausen effect would be present:




Domain structure of a examplary meander domain (recorded using CMOS-MagView

[seasmith]

Current oscillators are silicon-based and use the charge of an electron to create microwaves. The UCLA-developed oscillators, however, utilize the spin of an electron, as in the case of magnetism, and carry several orders-of-magnitude advantages over the oscillators commonly in use today.

The structures, called spin-transfer nano-oscillators, or STNOs, are composed of two distinct magnetic layers. One layer has a fixed magnetic polar direction, while the other layer's magnetic direction can be manipulated to gyrate by passing an electric current through it. This allows the structure to produce very precise oscillating microwaves.

In addition, the new nanoscale system is about 10,000-times smaller than the silicon-based oscillators ...

http://www.nanowerk.com/news/newsid=25708.php?

[seasmith]

Magnetic Plasma Emission Heating

The new research led by Dr. Kareem Osman at the University of Warwick's Centre for Fusion, Space and Astrophysics has revealed how turbulence heats the solar wind. He says: "Turbulence stretches and bends magnetic field lines, and often two oppositely directed field lines can come together to form a current sheet. These current sheets, which are distributed randomly in space, ... The researchers set thresholds in the strength of these current sheets, to determine how proton temperature was related to current sheet strength. The results show convincingly that these current sheets are associated with temperature.enhancements, and that the strongest are also the hottest.

While each current sheet does not provide a lot of heating, collectively the current sheets account for 50% of the solar wind internal energy despite only representing 19% of all the solar wind data. Even more striking, the strongest current sheets which only make up 2% of the solar wind were found to be responsible for 11% of the internal energy of the system.

The researchers also found that current sheets heat the solar wind in a very interesting manner; the heating is not equal in all directions. This temperature anisotropy can drive plasma instabilities and the strongest current sheets where preferentially found in plasma that is unstable to particular types of these instabilities called 'firehose' and 'mirror'.

Or "plasma instabilities" can drive "temperature anisotropy" ~

http://phys.org/news/2012-08-extreme-pl ... ories.html

http://phys.org/news/2012-08-magnetic-t ... solar.html

[Sparky]

"Turbulence stretches and bends magnetic field lines,--

What kind of "turbulence" can deform magnetic fields?

[seasmith]

electric

[sjw40364]

electric

NASA has known that for a long time.

http://helios.gsfc.nasa.gov/solarmag.html

A-E-T-H-E-R...

[Sparky]

They are talking about interacting electromagnetic structures, aren't they?

[sjw40364]

NASA is still confused tho:

The electric currents in the Sun generate a complex magnetic field.

and

Because of this attachment, the behavior of energetic particles in space is dictated by the structure of field lines. Magnetic field lines are frozen into plasmas and move as the plasmas move.

So they agree electric currents generate magnetic fields, and moving charged particles cause electric current. But then these fields lines somehow freeze themselves into the plasma and no longer need electric currents to power them. A huge contradiction, but no one seems to notice.

[seasmith]

Radiation Belt Storm Probes Mission-RSPB

Sun-Earth magnetic domains interface interactions elucidation on the way.

Eastern Daylight Time on August 30, 2012, the Radiation Belt Storm Probes (RBSP) were launched into orbit on a United Launch Alliance Atlas V rocket that lifted off from Cape Canaveral Air Force Station in Florida. (Watch video of the launch here.) The Johns Hopkins University Applied Physics Laboratory (APL) built and will operate the twin RBSP spacecraft for NASA’s Living With a Star program.

The identical twin spacecraft will fly in separate orbits across the inner and outer Van Allen radiation belts. The mission is starting near the height of the Sun’s 11-year cycle, or solar maximum. Activity on the sun influences the behavior of the radiation belts, though scientists are puzzled by that behavior. Sometimes a solar storm can swell the belts with particles and energy, creating havoc for Earth-orbiting satellites by accelerating electrons (aka, “killer electrons”) and creating electrical currents. Other times, the radiation belts grow very calm and depleted during Sun storms. Occasionally, no change is detected at all.

http://rbsp.jhuapl.edu/index.php

[sjw40364]

The problem with their magnetic reconnection theory is that one must ignore facts:

http://maxwell.byu.edu/~spencerr/websumm122/node69.html

And the video is a great segway to the EU:

http://www.nasa.gov/mission_pages/rbsp/ ... hnews.html

[seasmith]

The 'mainstream gratuitously provides the data.We may draw our own conclusions.

[Sparky]

http://youtu.be/KBZTXdf7c-o

ok, how do you make a magnet spin in a static electric field?

[seasmith]

http://www.youtube.com/watch?v=PdnwDaFg7EE&feature=plcp

[Sparky]

Thanks.... ..by deceiving, rotating a hidden magnet.

[seasmith]

-

--rotating a hidden magnet

as in a brushless fan motor