about the Ferrocell (ferrolens)

[dyetalon]

[VIDEO]https://www.youtube.com/watch?v=NXjG2CYozdg[/VIDEO]


Pole flux pattern as shown later on the above video is the same on both poles N-S of any dipole magnet.

No difference on the wire-frame flux pattern.

(snapshots taken from the video above)



So, WHY THEN SAME POLES OF TWO MAGNETS REPEL AND OPPOSITE ATTRACT??

Any ideas and explanations you may have?


EM

Chirality: https://en.wikipedia.org/wiki/Chirality

N and S spins are opposite directions, even if you don't see the pattern.
It's like trying to screw a right-threaded nut on to a left-threaded bolt.

Nice pix, BTW.

[Markoul]

Timm,

Chirality: https://en.wikipedia.org/wiki/Chirality

N and S spins are opposite directions, even if you don't see the pattern.
It's like trying to screw a right-threaded nut on to a left-threaded bolt.

Exactly! however is there a way to prove it optically on the ferrocell without using a CRT?

[Markoul]

Electromagnet in TFL (Coiled In Oil) -Mike Palazzola

[VIDEO]https://www.youtube.com/watch?v=gnlbGbZv2b8[/VIDEO]

[Markoul]

First time ever - Field of Radial Magnetized Ring viewed with the Ferrocell

[VIDEO]https://www.youtube.com/watch?v=zCV7h9vr9tw[/VIDEO]

part 1




[VIDEO]https://www.youtube.com/watch?v=THRTz5Caryg[/VIDEO]

part 2


Radial magnetized ring magnet:




EM

p.s. I really had like your input and commentary... special in part 2 of video which has generated some questions and bothered me...

[bistander]

Coil

[VIDEO]https://www.youtube.com/watch?v=gnlbGbZv2b8[/VIDEO]

Cool. I would like to know what the coil looks like. Does it have a core? Core material? # of turns? Resistance? What happens with the coil on a flat ferrocell?

Thanks to Mike Palazzola

bi

[Markoul]

Excellent dipole Halbach ring array with only one pole radially magnetized!

[VIDEO]https://www.youtube.com/watch?v=dKXC10XGtyw[/VIDEO]

Excellent dipole K=2 configuration Halbach ring array field shown by ferrocell done with 8 magnets (see where the arrows are).

There is one normal pole at the center of the ring (i.e. black hole at the center) and the other pole is the radial magnetized black thin ring shown.

Its like an radial magnetized ring magnet but only its outer perimeter is magnetized radially all around and its other pole is an normal pole at the center of the ring!


EM

[Markoul]

My Radial Ring Magnet on the 509 new Ferrocell Prototype

[VIDEO]https://www.youtube.com/watch?v=MCte9AF8qTc&feature=youtu.be[/VIDEO]

Light strip above Ferrocell. Radial ring under the ferrocell.

On a radial ring magnet, its side view of the field is showing both of its poles and dielectric plane as a torus.

Face view of a radial ring magnet is its field side view.


[VIDEO]https://www.youtube.com/watch?v=XuMiqIR46ig[/VIDEO]

Light strip under the Ferrocell. Radial ring under the ferrocell.

Face view of a radial ring magnet is its field side view.


EM

[bistander]

Dipole?

[VIDEO]https://www.youtube.com/watch?v=dKXC10XGtyw[/VIDEO]

Excellent dipole K=2 configuration Halbach ring array field shown by ferrocell done with 8 magnets (see where the arrows are).
...

Looks like a quadrupole to me.

https://www.supermagnete.de/eng/Magn...net-Quadrupole

[dyetalon]

Looks like a quadrupole to me.

https://www.supermagnete.de/eng/Magn...net-Quadrupole

Wow, that is amazing. Markoul's image looks like a zennia in full bloom.


And related to Mikes awesome tank experiment:
Something similar that's not common knowledge is a sphere magnet will levitate in a ferrofluid.

If you fill a small container with ff and drop a sphere into it, the magnet will move to the center and remain in that position.

(Ref: Rosensweig "Ferrohydrodynamics" pages 150-152)

[Markoul]

If you fill a small container with ff and drop a sphere into it, the magnet will move to the center and remain in that position.

What?!!... That defies gravity!! That is also proof that ferrofluid is magnetically isotropic.


Mike!!...

[dyetalon]

What?!!... That defies gravity!! That is also proof that ferrofluid is magnetically isotropic.


Mike!!...

You really need to read that book on Ferrohydrodynamics by Rosensweig. It has many answers and a lot of questions, too. It's the Bible of Ferrofluid.

[bistander]

Book

...

(Ref: Rosensweig "Ferrohydrodynamics" pages 150-152)

Looked like a great reference. I was able to read some at the beginning on a free sample web page. Then tried to scroll down to p.150 but s.o.l. Ended at p.132. You know a free on-line source or do I have to buy it? Or check the local library... fat chance they'd have it.

bi

[dyetalon]

Looked like a great reference. I was able to read some at the beginning on a free sample web page. Then tried to scroll down to p.150 but s.o.l. Ended at p.132. You know a free on-line source or do I have to buy it? Or check the local library... fat chance they'd have it.

bi

I doubt there is a legal free download. I saw used paperbacks starting around $18.00 usd, but you may find a copy at your local library (remember them?).
Anyone seriously interested in Ferrofluid should have a copy. It's the 'worlds reference' on the subject.

[Markoul]

Spinning Plasma ball experiment!

[VIDEO]https://www.youtube.com/watch?v=Wis_HEa3X84[/VIDEO]



Makes you realy wonder what magnetism really is?...

...a spinning inertia plane (i.e. dielectric plane or Bloch disk) maybe?...


EM

[Markoul]

Timm here is the 3rd confirmation from plasma experiments

I've been busy doing other stuff for a while & just caught up to you guys. Very good experiment for sure! You're a genius Mike.

These results do seem to correlate with my early experiment. Now all we need is a 3rd verification using plasma. It should present the same views.


Gotta go. Good luck in Utah, Ken. Have fun.

This little gem although his narration is partially wrong in some points and totally wrong at some other points:

[VIDEO]https://www.youtube.com/watch?v=afQW8FT02DM[/VIDEO]

The ion current on the Mobius glass walls flows at the down direction V vector towards the exciter platform. He is using a cylindrical magnet on a cylindrical glass.

When he inserts the pole of the magnet inside the the glass at the center, magnetic B field is parallel to V vector of ion plasma current and the right hand rule therefore results to no Lorentz force is applied to the neon ion current according to classical theory with magnetic flux lines coming out of the North pole and going into the South pole . However we see definitive CCW spin for North pole and CW spin for South pole!! Right hand rule does not apply here!

How is that possible? Unless field of magnet is not static but consists of two counter spinning torus fields as shown by the ferrocell?


Also from primer fields video, the two torus field geometry is also demonstrated with plasma experiment:


[VIDEO]https://www.youtube.com/watch?v=9EPlyiW-xGI[/VIDEO]


Pause at exactly 7:27 time of the above video.

Brightness of the plasma prevents to view the two separated magnetic fields in most of the video however at that time stamp above they are evident.


my2cents

EM