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Author Topic: North only magnets  (Read 7300 times)

Offline penno64

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  • Posts: 457
North only magnets
« on: February 23, 2011, 11:21:20 AM »
Hi guys,

Does anyone recall a youtube where the guy used a rodin coil and claimed
he had made a north only magnet ?

Would love to revist this.

Probably 12 - 18 months ago (I think)

Kind Regards, Penno

Offline rensseak

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  • Posts: 330
Re: North only magnets
« Reply #1 on: February 23, 2011, 11:57:06 AM »
Hi guys,

Does anyone recall a youtube where the guy used a rodin coil and claimed
he had made a north only magnet ?

Would love to revist this.

Probably 12 - 18 months ago (I think)

Kind Regards, Penno

http://www.youtube.com/watch?v=RnjW1zROJPc

Offline penno64

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  • Posts: 457
Re: North only magnets
« Reply #2 on: February 23, 2011, 12:10:12 PM »
@Ren,

thanks for the prompt reply.

Yes, thats the one !

Penno

Offline penno64

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  • Posts: 457
Re: North only magnets
« Reply #3 on: February 24, 2011, 08:09:59 AM »
Hi all,

Assume for a moment that I am a complete novice !

Can someone please explain the reasoning why it would be simpler to make a
self runner if you could get your hands on monopole magnets ?

I think what I am hearing is NORTH only or more North than south.

I gotta say, I can not see how these could exist, but, hey, I am the novice.

Kindest Regards, Penno

Offline truesearch

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  • Posts: 277
Re: North only magnets
« Reply #4 on: February 24, 2011, 04:24:25 PM »
@penno:

Maybe I'm wrong on this, but isn't it "conventional" wisdom that says that a magnet MUST have two poles? (wikipedia link: http://en.wikipedia.org/wiki/Magnet ). Something like if the flux lines are complete blocked that the magnet won't work.

Now the closest thing that there is to a "mono-pole" magnet is a "Halbach-Array" which has an arrangement of magnets that ALMOST cancel out all but 1 of the poles? See http://en.wikipedia.org/wiki/Halbach_Array

Now, that being said and candidly ignored, couldn't we build a magnetic "V-Gate" that didn't have a "sticky-point" if we could have a mono-pole magnet? We might need to have a tightly "focused" magnetic field and have an arrangement where magnets are mounted onto a "wheel" and then they swing around into a position and is repelled by a same-pole magnet. . . . . . maybe.

sincerely,
truesearch