the Ferrocell

[sadang]

...see the green pix: its a close up of the particle chains (dual helix's) in a field.

Could you please develop a bit this sentence? On that green image I see only a single line and its shadow, due to the intense light used when the photo was made. What you mean by "dual helix"?

Regarded your opinion that light interact with magnetic field, here I think we have a bit separate opinions. But I consider it is not important in my actual interest on understanding the shape of the magnetic field shown by a ferrocel.

---#---

I asked two questions and I'll try to develop a bit each one bellow:
1.

"Going further with my analysis, that shift of ferrocel's particles angle along that white line (or the vertical half of the magnet) tell me the magnetic lines of force change their polarization effect over the ferrocel's particles. Why that happen in a vertically structured and discrete continuous lines of force of the magnetic field?"

- My question was somehow rhetorical, trying to emphasize the current well known shape of the magnetic field around a magnet could not be as it learned today, taking into account that shift of angle of ferrofluid particles that create the impression the colored lines end at the middle of the magnet (along the white line I drew over the magnet).

- Even if we take into consideration the surface plasmon descriptions of the phenomenon, this does not explain why the colored lines end along the white line drew by me, or why the chains of nanoparticles end there, or why the light doesn't continue its interactions with the magnetic field along the entire length of the physical magnet, to make a single long colored line. Something is happening there, in that area! And i think is something related to the shape of the magnetic field and its internal structure.


2.

"Another thing I don't understand is why only one color for a single colored line? Why the color don't mix along a single line of magnetic field? The polarization of the ferrocel particles by the magnetic field make them to obey the same angle along one single colored line, but don't explain why they reflect only one color! There is something I miss?"

- I asked this question trough my way of understanding of how a ferrocel works, ie trough the reflection of light by the nanoparticles from ferrofluid. Considering this way, I don't understand why the color don't mix along the red line for example. Why there is not a mix of colors, because all colors arrive at and touch that chain of nanoparticles. Why only the red ligh is reflect?

Even if we consider the surface plasmons, it's hard for me to not see the implications of the magnetic field structure in the final result obtained. The magnetic field dictate the shape and alignment of the chains of the ferrofluid nanoparticles, and the colored light only visually highlights them. The second image is relevant for this aspect. And the main question still remain: why color don't mix along a single line of chained nanoparticles?

---#---

Anyway, the last image show clearly the convergent  spiraling model formed by the nanoparticles chains, arranged in their turn in this way by the magnetic field of the permanent magnet. This convergent spiraling model is just a 2D projection in the plane of the ferrocel, of the 3D shape (static or dynamic is another discussion) of the magnetic field. Just a slice from the 3D shape of the magnetic field around the permanent magnet.

This 3D shape can be intuited looking at the length and the curve direction of the colored lines. The upper lines are CCW and have full length and the same brightness until they reach the central convergence point, the central funnel. The lower lines are CW and short length and reduce their brightness as approach (in reality as them moves away) by the central funneling column, in their path to the bottom funnel. Of course the CW and CCW are simple a matter of interpretation relative to the point of reference of the observer, but they can be seen both as dextrogire dynamics. What is your point of view regarded the aspects exposed by me above?

[pinestone]

Could you please develop a bit this sentence? On that green image I see only a single line and its shadow, due to the intense light used when the photo was made. What you mean by "dual helix"?

Regarded your opinion that light interact with magnetic field, here I think we have a bit separate opinions. But I consider it is not important in my actual interest on understanding the shape of the magnetic field shown by a ferrocel.

---#---

I asked two questions and I'll try to develop a bit each one bellow:
1.
- My question was somehow rhetorical, trying to emphasize the current well known shape of the magnetic field around a magnet could not be as it learned today, taking into account that shift of angle of ferrofluid particles that create the impression the colored lines end at the middle of the magnet (along the white line I drew over the magnet).

- Even if we take into consideration the surface plasmon descriptions of the phenomenon, this does not explain why the colored lines end along the white line drew by me, or why the chains of nanoparticles end there, or why the light doesn't continue its interactions with the magnetic field along the entire length of the physical magnet, to make a single long colored line. Something is happening there, in that area! And i think is something related to the shape of the magnetic field and its internal structure.


2.
- I asked this question trough my way of understanding of how a ferrocel works, ie trough the reflection of light by the nanoparticles from ferrofluid. Considering this way, I don't understand why the color don't mix along the red line for example. Why there is not a mix of colors, because all colors arrive at and touch that chain of nanoparticles. Why only the red ligh is reflect?

Even if we consider the surface plasmons, it's hard for me to not see the implications of the magnetic field structure in the final result obtained. The magnetic field dictate the shape and alignment of the chains of the ferrofluid nanoparticles, and the colored light only visually highlights them. The second image is relevant for this aspect. And the main question still remain: why color don't mix along a single line of chained nanoparticles?

---#---

Anyway, the last image show clearly the convergent  spiraling model formed by the nanoparticles chains, arranged in their turn in this way by the magnetic field of the permanent magnet. This convergent spiraling model is just a 2D projection in the plane of the ferrocel, of the 3D shape (static or dynamic is another discussion) of the magnetic field. Just a slice from the 3D shape of the magnetic field around the permanent magnet.

This 3D shape can be intuited looking at the length and the curve direction of the colored lines. The upper lines are CCW and have full length and the same brightness until they reach the central convergence point, the central funnel. The lower lines are CW and short length and reduce their brightness as approach (in reality as them moves away) by the central funneling column, in their path to the bottom funnel. Of course the CW and CCW are simple a matter of interpretation relative to the point of reference of the observer, but they can be seen both as dextrogire dynamics. What is your point of view regarded the aspects exposed by me above?

Good questions!
As for the green pix, this image was taken by a fellow collaborator (Jack Shearer). Before he died (in 2008) he told me he used a 'dark field' lighting technique to make that pix. I'm not a microscope guy, but he was.

Wiki on Darkfield: "Dark field microscopy is a technique for improving the contrast of unstained, transparent specimens. Dark field illumination uses a carefully aligned light source to minimize the quantity of directly transmitted (unscattered) light entering the image plane, collecting only the light scattered by the sample. Dark field can dramatically improve image contrast – especially of transparent objects – while requiring little equipment setup or sample preparation. However, the technique suffers from low light intensity in final image of many biological samples, and continues to be affected by low apparent resolution."

The chains we see are not shadows. The chains are wrapped around each other, and we only see the chains that are in focus- its a 'sea of chains' and there are many more we see look like shadows, but they are out of focus. I used Photoshop's green filter tool. It was originally a black and white pix. Green shows more detail than the b&w photo did.

These 2-d photos do not show the depth (holographic) as in real life. Yes it seems the flux spirals around and there is something else on the poles, too.

photo 1: Here's a straight-on view thru a ring magnet using an edge-lit cell (photo by Michael Snyder, another collaborator):
He's using a different technique than I am. but you can see its much more symmetrical at a zero degree angle. The photos I uploaded before are taken at a 45 degree angle and show more activity than his does.

I don't have answers to all the questions, that's why I'm still in the research and development stage. More people experimenting with my cells will help answer some of these difficult questions (it's been 10 years since my first discovery) and the scientific community doesn't care unless they can get money to do research on it. Seems nobody does science for science sake anymore- its all about the money!

photo 2: There are 'lines' going to the top pole and lines going to the bottom pole. sometimes they cross and sometimes they don't. Where they do cross, a new color emerges (second pix also by Mike Snyder) is a quadrupole (4 magnet poles same polarity). The images I posted earlier are only using one magnet.

[pinestone]

Here are 3 colored LED's and their spectrometer response thru a medium cell (transmission mode= absorption):

The first thing we notice with the blue LED is how much of it is absorbed by the glass (yes silicon eats blue). The reference graph indicates a peak wavelength of 478.14 nm, and after passing thru the cell it drops to 488.89 (longer wavelength).
The spectrometer shows peaks for silicon, iron and other elements of the cell. These peaks are noticeable with green LED too.
But red passes much easier thru the cell and we don't have enough sensitivity to see the peaks in that image.
The green graph reference is 517.91 and drops to 522.91 when it passes thru the cell. Yes, its a slight frequency shift, but a noticeable hue change.
The red graph reference is 625.14 and drops to 626.31 after passing thru the cell. That's not much of a change and when you look at photographs of red thru the cell, it doesn't appear to shift much.

[pinestone]

...Something is happening there, in that area! And i think is something related to the shape of the magnetic field and its internal structure...

Even if we consider the surface plasmons, it's hard for me to not see the implications of the magnetic field
structure in the final result obtained. The magnetic field dictate the shape and alignment of the chains of the
ferrofluid nanoparticles, and the colored light only visually highlights them...

Just a slice from the 3D shape of the magnetic field around the permanent magnet...

This 3D shape can be intuited looking at the length and the curve direction of the colored lines. The upper lines are CCW and have full length and the same brightness until they reach the central convergence point, the
central funnel. The lower lines are CW and short length and reduce their brightness as approach (in reality as them moves away) by the central funneling column, in their path to the bottom funnel. Of course the CW and
CCW are simple a matter of interpretation relative to the point of reference of the observer, but they can be seen both as dextrogire dynamics. What is your point of view regarded the aspects exposed by me above?

I think this one image will answer all of these questions and observations.
It's a photo of a 1T cylinder magnet with black shrink tubing over it (reduce reflections).
I have it setting on the tip of my finger, resting one pole on the rear face of a Ferrocell.
The lighting is above the magnet and behind the cell.
You can see the 'flux' spiraling up and over the pole and twisting around the center (Bloch region) where it's difficult to see clearly, but the flux continues to the other pole.
It was one of the experiments that got me excited to explore deeper.
...one of the first 10 or so pictures I ever took.
Back in 2005.

[sadang]

You have more experience and more practice than me with these ferrocels, and I can't afford to discuss more on them than using my imagination, knowledge and understandings.

The chains we see are not shadows. The chains are wrapped around each other, and we only see the chains that are in focus- its a 'sea of chains' and there are many more we see look like shadows, but they are out of focus. I used Photoshop's green filter tool. It was originally a black and white pix. Green shows more detail than the b&w photo did.

Because an image makes as 1000 words let me show what I meant trough shadows. I marked with arrows the nanoparticle chains and its shadow on the bottom surface of the ferrocel or somewhere under the chain, difuzed in the mineral oil.

But in the case of photo made under a dark field microscopy, things change at 180 degrees. What is dark is the chain of ferrofluid nanoparticles and what is brighter are its edges, or more accurately the light reflected from the chain edges.

Only through this new perspective of darkfield microscopy, I can sense and understand at the same time, that these chains are twisted around each other, as is emphasized by me in your images. But still remain one question, what was the direction and polarity of the magnetic flux whaen was made this photo?

Regarded the second photo where I see intuitivelly and in depth the shape of the magnetic field, I still continue to sustain my assertion, due to what I explained in previous message. I suppose if you will change the viewing angle the lines will change their position but will keep their spiral shape. So, as you come closer to vertical point os symetry of the magnet the lines will become perfectly symmetrical, but always keeping the spiral shape. My conclusion is the chains of nanoparticles have this spiral shape over, only the light reflected by them (or reflected/emited by the surface plasmons) change in accordance with the view angle.

I see these CCW and CW and in depth spiraling lines even on the sunflower beatiful image you attached in the last message. Here I see that both CCW and CW red lines enter in the upper funnel, not only one as in the previous image, which means for me that the symetrical dynamics of the magnetic flux, keeps its aparent opposed symetry on both ends of the magnet, and in both vertical and horizontal planes.

If, I'm wrong please correct me, because I don't have a ferrocel, and use only my mind, knowledge and imagination.

In the last image you posted, I see the lines go out form the magnets and anter in the central vortex, made by the interaction of that four magnetic fields. In clasical view they repel each other, in the center appearing an area of great pressure. Acording to this image in the center appear an area of very low pressure, and I dare to say an area of great vortexial speed. Of course, in the plane of ferrocel we can't discuss about a 3D vortexial dynamic, but only about a flat area of low pressure. The colored lines coming from magnets and seeming to get into that central point, are actually projections in the plane of the ferrocel of the magnetic field lines coming from the two upper and lower magnetic poles. And I again here ask: why only a single color on a line, when for sure at that chain or chains of nanoparticle arrive all RGBY colors? A future theme of study!

I see you emphasized two times until now the changing of the color of lines where they corss each other. I don't have an answer of this phenomenon and in my opinion it can be placed besides my question about why one single color for a line! I have in mind something related to the wave length of light and its interactions with the surface plasmons, but I have to deepen this subject.

You take too fast with so many messages. To the last one with the experiment from 2005 give me some time to understand it deeply and to make my own interpretation of the phenomena, and I'll be back to you with my own point of view. Anyway, you made a great work with all these ferrocels on the way of udnerstanding the real structure of the magnetic field, and not only!