Roll on the 20th June

[Rusty_Springs]

Hi All
I just remembered someone talking ages ago about using black sand and I was wondering is black sand isotropic ferrite?
Take Care All
Graham

[capthook]

You can buy it on the Internet .. if you really can't find any.

Google it online with these three words
http://www.google.ca/search?hl=en&pwst=1&q=Isotropic+Permanent+Magnet&start=20&sa=N

Yes - I spent 3 hours this AM searching for an on-line supplier of "isotropic ferrite"... not much luck....

I did turn TDK in the search:
http://www.tdk.com/#
and these:
http://www.grouparnold.com/index.htm
http://www.armsmag.com/c_stock_sizes.htm
http://www.magnetsales.com/index.htm
http://www.amfmagnetics.com.au/products/ferrite_magnets/blocks_small
http://www.a1magnetics.co.uk

Any on-line ordering site links offering various sizes/strengths of "isotropic ferrite" anyone can offer/recommend... please post links...

"So the percentage of the 'wands' magnetism imparted is very small?
What if you used shorter rods than the screwdriver extensions... smaller Mag wand needed?
Or fatter rods?
Or just 1 rod?
Or larger ferrite rings?"
.....these are suggestions to you for possible testing variables.....

"It's easy to find .. many everyday things have some of it in them (black shit) ..
Look around in your junk/surplus electronics stores .. - Mastervox  "

Ceramic magnets are easy to find - "isotropic" ones appear to be much more difficult (for me anyway!)

I'm EXTREMELY anxious to get my hands on some of it to test.......

EDIT:
For example this link: http://www.magnetsales.com/Ferrite/ferrrect.htm#grade1
2 sizes offered....
But what does this mean? "Magnetized 2 poles on one side" ?
I guess I could order "55A705915 1 0.710 0.595 0.157 " not the size I want - but at least a start....
(no online ordering feature)
And it seems isotropic only comes in "grade 1" (low strength)?
It seems I read somewhere about a company that can special design rare-earth (strong) isotropic mags

(Like most things - when I learn about something - I want to learn EVERYTHING there is to know about it  )

[exxcomm0n]

The iso-ferrite thingy.......

If'n memory serves correctly, the PC industry uses them (cylinders clamped around the power cable of just about everything) as do transformer blocks.

If you can garage sale you up some worthless devices for the power adapters ferrite plugs since they'd be about the right size and shape for a proof of concept toy and being short tubes might lend themselves to having an iron core to keep them aligned and, who knows, maybe having the effect for a magnetic cylinder as iron cores do for electrical coils.

I still stand firmly in the thoughts that magnetism and electricity EDIT can't truly be divorced from one another.

Just the millionth monkey bashing a typewriter near the dawn of an epoch.

I always heard it was darkest just before dawn.

Anyway, take it for what it's worth. I'm not even for sure that that's what those things are, but it seems I learned they was there to choke EMI once upon a time.

KEEP playing kids!



Now....back to tape and mag placement........sigh.

[gwhy!]

Hi queue
I would think to make anything work with isotropic ferrite it would depend on the force needed to switch the switch on and off, if the force needed isn't that great then you can set this up to work like any electricmotor using isotropic ferrite as the stator and a neo bar magnet as the rotor, you would have two switches one would make the stator poles north south the other would revease it and make them south north, the switches would change at the half way point of the isotropic ferrite stator's so like and electric motor you would attract in and repel out.
I must give Archer this one, I have talked about magnetic current years ago but never with isotropic ferrite and I think thats the key, the idea is not new but using isotropic ferrite for it is new.
Take Care queue
Graham
PS: I was thinking of using soft iron to do the same thing as I just discribed but I thought the force needed to change the circiut was to great, maybe I was wrong and the force isn't to great time will tell.

I have my doubts about this ( but I am a newbee and still learning ). But I have been thinking about it real hard ( and now my head hurts  ) .  Just wish I had a large dia magnetized cylinder mag kicking around as  I already have have a fare few ferrite rods to play with, I think it would be very quick and easy to test the principle in a electric motor configuration as Rusty states.       

[kremlin01]

Re: 4674. wizardofmars.

Did you say steorn'?  That was no blaze of glory, that was one damp squib!
Compare what we have seen from AQ, and remember the vast investment that went to Steorn,what a waste.