Howard Johnson linear track accelerator video

broli · March 30, 2009, 08:21:46 PM

Quote from: Pirate88179 on March 30, 2009, 08:11:17 PM
Just a note from some of my own experiments with magnets. I took 2 neos (1/2 inch dia.) and superglued them in the repelling positions just to see what happened. Guess what? The pole reversed on one of the magnets and it now became just a thicker magnet with n/s poles. I still have it sticking on my fridge and the poles are still reversed on one of the magnets....I have no idea which one but....just wanted to pass this on. If you glue two opposing magnets together you do not get 2 south or north poles. Try it and see for yourself. It is not easy, I had to use vicegrips as these neos are very strong.

Bill

That defies common sense as neo's need quite a large field to reverse them. I've tried both neos on neos and ferrites on ferrites and neither flip their friend's pole. If you stick a neo to a ferrite that's another story. Btw you won't find any neo's ring big enough to make a reasonable sized gate. While ferrites can be found very cheaply.

Pirate88179 · March 30, 2009, 08:34:52 PM

Well, with all due respect, you may say it defies common sense but that is what happens. I am looking at them now. Yes, only 1 north and 1 south pole. As I said in my post, try it yourself and you will see. If not, maybe it is possible I found the only 2 neos in the world that this will happen to but, I rather doubt that. As I said, try it and one of us will learn something. If you indeed get different results, I would be very interested in hearing about it. Thanks.

Bill

broli · March 30, 2009, 08:38:14 PM

Quote from: Pirate88179 on March 30, 2009, 08:34:52 PM
Well, with all due respect, you may say it defies common sense but that is what happens. I am looking at them now. Yes, only 1 north and 1 south pole. As I said in my post, try it yourself and you will see. If not, maybe it is possible I found the only 2 neos in the world that this will happen to but, I rather doubt that. As I said, try it and one of us will learn something. If you indeed get different results, I would be very interested in hearing about it. Thanks.

Bill

Quote from: broli on March 30, 2009, 08:21:46 PM
That defies common sense as neo's need quite a large field to reverse them. I've tried both neos on neos and ferrites on ferrites and neither flip their friend's pole. If you stick a neo to a ferrite that's another story. Btw you won't find any neo's ring big enough to make a reasonable sized gate. While ferrites can be found very cheaply.

These magnets are next to me duct taped together. I don't want to start a ridiculous conversation about this so please let's drop it here.

0c · March 30, 2009, 08:39:19 PM

Quote from: broli on March 30, 2009, 08:21:46 PM
Btw you won't find any neo's ring big enough to make a reasonable sized gate. While ferrites can be found very cheaply.

http://www.supermagnetman.net/product_info.php?cPath=41&products_id=420

Definitely not cheap!

broli · March 30, 2009, 08:44:28 PM

Quote from: 0c on March 30, 2009, 08:39:19 PM
http://www.supermagnetman.net/product_info.php?cPath=41&products_id=420

Definitely not cheap!

Yes sorry I was wrong. I should change that to "affordable enough".

Here you see a bigger sized ferrite magnet for the a fraction of that price

http://cgi.ebay.com/Large-Powerful-Ring-Ceramic-Magnet-2640g-94oz-8_W0QQitemZ330318441532QQ

So two cost 30$ while the neos would cost 850$. Also that website points it out quite nicely. This magnets are extremely dangerous and hard to handle.