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Author Topic: Magnetic wheel by steel shielding  (Read 17892 times)

Offline Low-Q

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Re: Magnetic wheel by steel shielding
« Reply #15 on: March 06, 2019, 03:53:40 PM »
Video at :
https://youtu.be/ExygPXDzLow

By moving a steel plate as a shield between two repelling stack of magnets, one on wheel and another fixed to the table, the
wheel can be made to rotate continuously.
If a roller ball is used between the magnet and the shield, the shield can be moved easily over the surface of magnet because the magnetic field is almost uniform in parallel plane.
The iron plate experience a magnetic field that is stronger when you position the rotor magnet side by side to the stator magnet. This will resist the iron sheet to be removed, so you need energy to remove the plate.
If you installed a lever on the rotor that rised the plate automatically, the motor will stop.


Vidar

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Re: Magnetic wheel by steel shielding
« Reply #15 on: March 06, 2019, 03:53:40 PM »

Offline norman6538

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Re: Magnetic wheel by steel shielding
« Reply #16 on: March 06, 2019, 04:47:50 PM »
I've pretty much given up on most OU stuff. My pendulum that goes from 2pm to 6 to 9 to noon
without getting stuck at noon gets totally ignored. And likewise my permanent magnet slider.
Some people do not recognize overunity   when it knocks them over the head.

I do have some hope for the Kerry Waenga Bessler wheel. I have made 1 of 5 segments and it
does what is claims to do. I need to add 4 more to see if it rotates. Many times what one segment does will not apply to a full wheel.  It uses gravity to store
potential work in a spring which is then used to kick the weight forward and upward over 8 degrees.

You may want to watch that on Bessler.com.

Norman

Offline vineet_kiran

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Re: Magnetic wheel by steel shielding
« Reply #17 on: January 07, 2021, 12:24:32 PM »
Does this material block magnetic flux without getting attracted to magnet?  Is it real or fake?
https://www.youtube.com/watch?v=veXx-8rGuks

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Re: Magnetic wheel by steel shielding
« Reply #17 on: January 07, 2021, 12:24:32 PM »
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Offline gyulasun

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Re: Magnetic wheel by steel shielding
« Reply #18 on: January 07, 2021, 08:12:45 PM »
Hi Vineet,

It is real, I mean it is able to block magnetic flux but it does have magnetic permeability of around 80,000 so magnets surely attract it excellently.

Some more info is here: https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Flux-Field-Directional-Materials-EM80KM/?N=5002385+3289539403&rt=rud   or here:https://www.digikey.com/en/product-highlight/3/3m/flux-field-directional-materials-for-nfc-rfid-and-wireless-power-applications     

All such magnetic flux shielding materials, made for supressing or attenuating unwanted EMI / EMC issues have magnetic permeability. 

Gyula 

Offline vineet_kiran

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Re: Magnetic wheel by steel shielding
« Reply #19 on: January 08, 2021, 04:46:58 AM »
@gyulasun
Thanks for the reply and link.  Interesting here is that  such a thin plate can absorb so much of flux.  If a strip of that material is used as a leaf spring so that the force of attraction from magnet is neutralized  by bending of the spring,  can we make a 'forceless' shield?

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Re: Magnetic wheel by steel shielding
« Reply #19 on: January 08, 2021, 04:46:58 AM »
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Offline gyulasun

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Re: Magnetic wheel by steel shielding
« Reply #20 on: January 08, 2021, 02:50:59 PM »
Hi Vineet,

I have no info on how much this material is springy, data sheet does not include it  https://www.digikey.com/en/products/detail/3m/EM80KM-005-1/7652420 , probably it is not. 

If you wish to use it as a 'forceless' shield, it should be sticked to say a thin plastic sheet which is springy enough to bend in the needed degree.   

You could get permalloy sheet, called also as mu metal, which has similarly high permeability as the above material (70,000 - 100,000) See price here:  https://www.amazon.in/Mu-Metal-Nickel-Sheet-100/dp/B085C3QSR7/ref=sr_1_3?crid=3JVEW7KC21J1L&dchild=1&keywords=permalloy+sheet&qid=1610111885&sprefix=permalloy%2Cindustrial%2C185&sr=8-3   

Alternatively, there are pure nickel strips used for battery connection but they are not likely as springy as one would like,  nevertheless they are available: 
https://www.amazon.in/Kewholesale-99-96-Battery-Connection-Welding-50Pcs/dp/B08282BWX1/ref=pd_sbs_328_3/257-8489244-2938319?_encoding=UTF8&pd_rd_i=B08282BWX1&pd_rd_r=9cfeb013-1d90-45a8-afde-c052e8bb3d8e&pd_rd_w=4XaoG&pd_rd_wg=gS5gc&pf_rd_p=daed850f-93fe-4839-8ae5-b1d9164f99e8&pf_rd_r=65QS835KEX1391MVKQ8M&psc=1&refRID=65QS835KEX1391MVKQ8M   

The magnetic permeability of nickel varies between 100 and 600, so not as high as mu metal or permalloy but still much higher than air. 
 
So you can continue brainstorming on setups with 'forceless' shields.   8)

Gyula

Offline lancaIV

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Re: Magnetic wheel by steel shielding
« Reply #21 on: January 08, 2021, 03:16:13 PM »
Thomas Townsend Brown GB300311 "gravitator cells ":

search machine : varnish cambric

                               empire cloth

In Porto/PT ,Campos&Cardoso office,Jorge Ferreira used a translucent sheet,like strong cellophan(cigarette package wrap ) ,WO2009154492 : "...... resina epoxida ....." f.e. Diluol liquid


Btw : " ..... nucleo para-magnetico ....."
para-magnetism ? search machine answer !


Sincere
OCWL

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Re: Magnetic wheel by steel shielding
« Reply #21 on: January 08, 2021, 03:16:13 PM »
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Offline nix85

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Re: Magnetic wheel by steel shielding
« Reply #22 on: February 23, 2021, 07:37:34 AM »
Vineet, this ceramic blocks the field without being attracted or repelled by it, inventor does not reply to emails and you cannot buy it.

https://www.youtube.com/watch?v=XVcB3mVyZWw
https://www.youtube.com/watch?v=_FABlYE9Vhc

Offline Floor

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Re: Magnetic wheel by steel shielding
« Reply #23 on: February 24, 2021, 08:29:54 PM »
@Nix85

interesting material

Free Energy | searching for free energy and discussing free energy

Re: Magnetic wheel by steel shielding
« Reply #23 on: February 24, 2021, 08:29:54 PM »
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Offline nix85

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Re: Magnetic wheel by steel shielding
« Reply #24 on: February 25, 2021, 12:03:21 AM »
@Floor yea

Offline norman6538

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Re: Magnetic wheel by steel shielding
« Reply #25 on: February 25, 2021, 02:00:28 AM »
The problem with metal between 2 magnets is you have 2 sticky spots on each side of the metal and worse yet they are closer than the magnets are so the sticky is more than doubled because they are closer. Been there done that many times.

Due to COVID and winter weather I have been working on the Flynn parallel path ideas. You can take two long strips of metal and slide a magnet between them but not touching them and move the flux from one end to the other. For max power the gap needs to be very small ie. .008 in. ie postcard gap. That is hard to embody quick and dirty.

And I am also working on an enhancement to this Flynn idea combining a Butch lafonte  trick. I'll get back when I have measurements to share.

But I did not find
that sliding another mag down close the one already there as Flynn proposed - makes any additive or multiplicative attraction force.

 
That was very discouraging plus after all these years we have not heard of any Flynn motors.

Norman

Free Energy | searching for free energy and discussing free energy

Re: Magnetic wheel by steel shielding
« Reply #25 on: February 25, 2021, 02:00:28 AM »
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Offline vineet_kiran

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Re: Magnetic wheel by steel shielding
« Reply #26 on: February 25, 2021, 04:33:11 AM »
Vineet, this ceramic blocks the field without being attracted or repelled by it, inventor does not reply to emails and you cannot buy it.

https://www.youtube.com/watch?v=XVcB3mVyZWw
https://www.youtube.com/watch?v=_FABlYE9Vhc

Second video shows  that magnet is getting repelled. Few comments say that it is bismuth which is a diamagnetic material.

A ferromagnetic material is attracted to both N and S poles and a diamagnetic material is repelled by both poles.  If a alloy of  ferromagnetic  and diamagnetic material is made with suitable percentages,  the attractive force on one material is neutralized by  repulsive force on another material hence we may get a shield which is neither attracted nor repelled by magnet.  It may block field from very weak magnets because repulsive force experienced by a diamagnetic material is very less compared to attractive force on ferromagnetic material.

If somebody has strips of both ferro and diamagnetic material, he can try making a 'forceless'  shield by sandwiching two strips with different thicknesses so that attractive force is balanced by repulsive force.

Offline nix85

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Re: Magnetic wheel by steel shielding
« Reply #27 on: February 25, 2021, 06:38:41 AM »
Second video shows  that magnet is getting repelled. Few comments say that it is bismuth which is a diamagnetic material.

A ferromagnetic material is attracted to both N and S poles and a diamagnetic material is repelled by both poles.  If a alloy of  ferromagnetic  and diamagnetic material is made with suitable percentages,  the attractive force on one material is neutralized by  repulsive force on another material hence we may get a shield which is neither attracted nor repelled by magnet.  It may block field from very weak magnets because repulsive force experienced by a diamagnetic material is very less compared to attractive force on ferromagnetic material.

If somebody has strips of both ferro and diamagnetic material, he can try making a 'forceless'  shield by sandwiching two strips with different thicknesses so that attractive force is balanced by repulsive force.

Magnet is repelled from other magnet when ceramic is lifted, there is no repulsion from a ceramic at all.

Bismuth is most diamagnetic (which is way too weak anyway) but what we see is not repulsion, it is neither a Meissner effect. Those in the comments are just mis-guessing.

Apparently this ceramic absorbs magnetic field as if it were a black hole while not being attracted or repelled by it.

Offline Floor

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Re: Magnetic wheel by steel shielding
« Reply #28 on: February 25, 2021, 05:39:43 PM »
The video as evidence, seems to indicate that the shielding material has a
fair to good degree of effectiveness.

Since we do not know the composition of the shielding material, we cannot
replicate  the demonstration.

The shield material appears to be cast. It has some bubbles.  It may be a ceramic
or it may be a plastic, perhaps epoxy matrix, in which is contained some combination
of materials which create a diamagnetic effect.

What ever its composition, and what ever its effectiveness, we do not definitively know.

          pity

Offline nix85

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Re: Magnetic wheel by steel shielding
« Reply #29 on: February 26, 2021, 01:40:29 AM »
which create a diamagnetic effect

Again, this has nothing to do with diamagnetic effect. There is no repulsion here. Magnetic field just disappears in the material without any perceptible interaction.

 

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