Pictures of Magnets that look like the Helisphere

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17 years 3 weeks ago #20770 by tvanflandern
<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Sir_Zerp</i>
<br />Here is the paper I just turned in to be published.<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">This is a discussion board, not a place to advertize your web site or paper. If you want discussion, you need to post enough material here to get discussion without need to go off-site. -|Tom|-

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17 years 3 weeks ago #19824 by Stoat
Replied by Stoat on topic Reply from Robert Turner
As I understand it, a ferrofluid is not ferromagnetic but paramagnetic. have you tried the experiment with a strong diamagnetic material such as bismuth?

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17 years 3 weeks ago #18388 by Sir_Zerp
Replied by Sir_Zerp on topic Reply from Michael
I will be glad to discuss it. Soon as I get thru the my finals in 13 days.

On the other hand, Stoat I don't know if I would call it a wavegenerator.

Gentlemen, will check back in two weeks. I get my degree on the 15th. &lt;big smile&gt;

Forward!

Zerp's Universal Law --- Dude, The Hot Side Faces Away From the Gravity Well ---

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17 years 3 weeks ago #18391 by Stoat
Replied by Stoat on topic Reply from Robert Turner
Hi Sir Zerp, my first guess as to what it's doing is that the light is being polarized. Easy to check, just add polaroid filters to the camera.

(edited) This material has a high susceptibility, so it would help if we knew its reactance and impedance. It must have a low impedance, so not much phase difference. Now Faraday wrote about how light is polarized in a diamagnetic field but I don't know what he had to say about paramagnetic fields. Has anyone got a link to this? I actually think that this is called the Faraday effect. Have you read up on the work of Howard Johnson, the secret world of magnets? It might be of some use.

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17 years 6 days ago #20706 by Sir_Zerp
Replied by Sir_Zerp on topic Reply from Michael
www.rsc.org/chemistryworld/News/2007/December/10120701.asp

'It was a chance discovery,' explained Mehta's colleague Rajesh Patel. While investigating the optical properties of their transparent fluid the researchers noticed that, in a certain magnetic field range, light scattering - both forward and backward - became zero. 'We thought the light got trapped inside,' said Patel. 'So, we switched off the laser [which was shining light through the system] and then the magnetic field, and there it was - a flash of colour lighting up our dark room.'

Hmmm....

Zerp's Universal Law --- Dude, The Hot Side Faces Away From the Gravity Well ---

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17 years 3 days ago #18133 by Stoat
Replied by Stoat on topic Reply from Robert Turner
Hi Sir Zerp, I would think that the medium that appears to be soaking up photons, is the oil. A diamagnetic forced to become more paramagnetic. This would have undoubted uses for storage and tuned lasers but if it can slow light it's worth its weight in gold, once the theory is worked out.

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