Magnet Myths and Misconceptions

[Newton II]

Anyhow, here's the small homopolar motor I promised. What is making it turn? What is being pushed against, and how?

http://www.youtube.com/watch?v=wFMq1Cvtg1s

Cureent flowing in the shaft is creating magnetic field which is reacting with magnetic field produced by permanent magnet. 

Shaft is rotating only because of difference in moment of force (torque) developed by magnet having larger diameter and the reactive torque experienced by central shaft having lesser diameter.  (action and reaction forces will be the same)

If you use magnets having same diameter as that of central shaft, will it rotate?

In such cases the input power will be huge (3V, 6Amps = 18 watts) whereas output power will be negligible. It may not even be 1 Watt.


Agree or disagree?

[Magluvin]

Due to the rickity slap together of the 1 wire stator, we get to see other things, things that would not have been noticed if all had been made 'the right way' lol

Should be uploaded in about 25min, then processing.

https://www.youtube.com/watch?v=oTa7j6qhWLY&feature=youtu.be

Mags

[Magluvin]

So after watching the vid, in the pic below, if we made a little framework to hold the 4 magnets and the whole thing were able to spin around the wire, using the wire as the axle, would the magnets spin around the wire?

With enough current flowing in the wire of course.

Mags

[Jimboot]

Kind of what I was thinking. A cylinder with mags on the inside staggered in a spiral pattern with the wire through the middle.
I reckon even I could build that. Thanks for the vid. Reminds of what dollard talks about in some aspects.

[Magluvin]

Today on my lunch hour(my shop 2 blocks away from work) I tried some other orientations of the magnet with the 1 wire stator.

The first experiment, I had the long thin magnet standing upright like shown in my last vid, but no pole facing the wire.

The magnet didnt move when centered with the wire, but when offset to the left or right of the wire, the mag pushes away from the wire, but one direction has a stronger push than the other. ok.

Then I tried just standing the thin magnet(about 5/8inx1/8inx1/16in) on a flat surface and setting the toroid coil around it to see if the coil would move the mag or knock it over. I hada very hard time getting the magnet to stand on its 1/8 x 1/16 end, even though it is a flat end.  I was thinking, hmm, maybe having just the one terminal of the cap at 170v was having some affect on the mag by 1 wire.  So I disconnected the coil and still the same thing. Then I remembered the bench has drywall screws and are probably pulling the magnet. So I went to a particle board table on a fold out table stand(plastic and aluminum.  Tried to stand the mag upright. Couldnt do it.

So I got out some 3/4 x 1/8 disk mags that can be had from Ace hardware. Got bunches of them around.

Guess what??  I could get it to stand up sometimes, but it kept turning to align with earth N and S poles.    Im talking no hung from a string, no needle bearing, magnet on particle board surface.   

This is surprising. I took my magnet to work. The same effect anywhere in the shop. Im at home now and it happens here also.

Ive been playing with mags for a long time, never had I encountered this. The earths field right now is super strong. You can feel the pressure of the magnet want to spin when aiming it east or west.   This is very similar to having some magnets on the same table you are working on and having them 4 to say 6 inches away from another mag on the table. Maybe closer.


I know there are some of you out there that have assortments of mags. Could you please test this for yourself and report back no matter whet the results are. So far I get the same result within a 5mi radius.

Just to show myself Im not nuts, I just checked it right here right now and still some stupid strong magnetic field is going on.

If anyone has a mechanical compass, does it react to N quicker than it ever did before?  Dont have one, just an idea. Or try a mag on a long thread and see how fast it turns N

Like ive hung a mag from a thread and it slowly would go N even teetering before settling. This thing is on a table, on edge and pulling like nothing Ive seen before in reference to earths field. Ever.

Im in south FL, kinda equitorial, so results may vary depending on location.

Mags