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Author Topic: Gadolinium Magnet Generator.  (Read 136447 times)

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #105 on: April 14, 2015, 11:56:13 PM »
I don't think this meter has the resolution of microvolts/milliamps.  Thought I grabbed the right one. "thought" being the key word.

profitis

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Re: Gadolinium Magnet Generator.
« Reply #106 on: April 15, 2015, 12:02:15 AM »
Mmm.ok so now let's try and attatch a single strand cotton thread to a coin and see if we can get it to permanently wobble-swing over a single neo pole like this 

                  .
                  .
                  .
              >  .
                  .
                  G
                  N

You've got to put a weight on the top of thread to keep inplace and do this whole setup away from wind/draughfts.all windows closed.if you get the slightest wobble permanent then we win

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #107 on: April 15, 2015, 02:29:44 AM »
I'm setting up for this. Also, with an ordinary ferrite doughnut magnet, poles on faces I am easily able to produce the effect.  At room temp the ferrite will pick it up. A quick shot from the hairdryer makes it fall off.

synchro1

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Re: Gadolinium Magnet Generator.
« Reply #108 on: April 15, 2015, 03:40:02 AM »
I'm setting up for this. Also, with an ordinary ferrite doughnut magnet, poles on faces I am easily able to produce the effect.  At room temp the ferrite will pick it up. A quick shot from the hairdryer makes it fall off.

@ekimtoor1,

Very exciting news about the hairdryer producing the fall off effect. Good luck!

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #109 on: April 15, 2015, 03:55:30 AM »
Once again I apologize for pic format. I'll figure out how to get my iPhone to downsize. Prolly need a different app.  Here is the GD coin suspended over a neo. It swung substantially for a while but is winding down and I would say it's gonna go still 

profitis

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Re: Gadolinium Magnet Generator.
« Reply #110 on: April 15, 2015, 08:54:46 AM »
Chek very closely.the slightest tiniest wobble will indicate good things.if its deadstill then its a no-no

profitis

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Re: Gadolinium Magnet Generator.
« Reply #111 on: April 15, 2015, 09:00:01 AM »
Move the coin further down or further up swing btween 2 poles.north-south/ north-north

profitis

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Re: Gadolinium Magnet Generator.
« Reply #112 on: April 15, 2015, 09:01:21 AM »
The tiniest vibration must be noted

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #113 on: April 15, 2015, 01:34:34 PM »
I do have a proper meter now. 

I will have to move this down into my music studio which has a concrete floor.  When I walk across the room where this is set up presently,
just my movement alone will cause it to start slowly twisting back and forth on the thread.  But as it is hung right now,
it always appears to come to stillness.  I will also put it under glass since it is also moved by even the slightest little swirl in the air around it.

I'll also set it up so I can adjust the position of the magnet and the coin.  I'll give it a go tonight.

So - place the cylinder magnet on it's side to allow the coin to be dropped into position between the poles?

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #114 on: April 15, 2015, 05:34:15 PM »
If very small movements or vibrations are important, then I could use this new tool from MIT to do a Eulerian analysis of a video:

http://lambda.qrilab.com/site/

it's free!

profitis

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Re: Gadolinium Magnet Generator.
« Reply #115 on: April 15, 2015, 08:47:00 PM »
That computer programme seems useful yes.I think its best to do the experiment under a belljar of sorts yes to avoid wind.I used to do this kind of experiment in my cupboard shelf and it worked pretty well as there was no movement detectable by the human eye when at equilibrium.if you can get it to move a mere millimeter continuous then its worthwhile.you can also attatch a ruler or stick to the coin and make it swing sideways past the neo like a grandpa clock of sorts.

profitis

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Re: Gadolinium Magnet Generator.
« Reply #116 on: April 15, 2015, 08:58:25 PM »
I wonder if we'l be able to smot a coin mmm

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #117 on: April 15, 2015, 09:27:31 PM »
I wonder if we'l be able to smot a coin mmm

I thought of that and even suggested GD to the folks on the recent SMOT thread. 
I looked everywhere for a GD sphere.  Not available.  Maybe a manufacturing problem.

TinselKoala

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Re: Gadolinium Magnet Generator.
« Reply #118 on: April 15, 2015, 09:58:29 PM »
Once again I apologize for pic format. I'll figure out how to get my iPhone to downsize. Prolly need a different app.  Here is the GD coin suspended over a neo. It swung substantially for a while but is winding down and I would say it's gonna go still

Uhh... you can see now I hope why pix should not be wider than 1024 pixels....
You can download the picture from your iPhone to your computer and resize it using any number of image editing programs. I use "gimp", which is free and powerful (essentially equivalent to Adobe Photoshop) and multi-platform, others may use different programs.
It's rare to need to show a photo at such large size. If you have some detail that needs careful examination you can crop it out of the larger photo and show it at full resolution, just not so wide that it makes comments go off the screen!
800 pixels wide is enough for ordinary purposes; the usual "limit" is 1024 pixels wide before strange things start happening.

As far as the actual experiment goes, you have to be very careful about the suspension fiber itself. Humidity changes can make it twist or untwist, changes in the attraction force, affecting the tension on the fiber, can make it twist or untwist, etc. Many people have been fooled by the twist characteristics of suspension fibers in torsion pendulums (which is essentially what your setup is.)

Tesla (as usual) patented a bunch of different thermomagnetic motor designs that depended on a metal being driven back and forth around its Curie point by an external heat source. I don't think he was aware of gadolinium's low Curie point; he mostly used pure Nickel in his motors. But they are worth taking a look at, the patent is easy enough to find and contains a dozen or more different design drawings. May give you some ideas.

TinselKoala

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Re: Gadolinium Magnet Generator.
« Reply #119 on: April 15, 2015, 10:01:36 PM »
I thought of that and even suggested GD to the folks on the recent SMOT thread. 
I looked everywhere for a GD sphere.  Not available.  Maybe a manufacturing problem.
Yeah, like maybe its melting point of 1312 C makes it difficult to cast in a sinker-mold or by lost-wax methods?
You could probably get someone to machine a sphere out of a commercial billet or barstock, though.