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Old June 22nd 04, 10:21 AM
Greysky
 
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Default For magnet lovers...

ever since I was a child, magnets have held a fascination for me. I've been
collecting them ever since. It used to be that you could always scrounge
loudspeakers for Alnico magnets. Then when the newer ceramic magnets began
to be incorporated into loudspeakers, it became a challenge to remove them
from their enclosures without breaking them. Now, I have to admit, I am
having a ball collecting the new 'super magnets' - like the ones inside hard
drives. There are also cool cylindrical magnets that you can get from inside
the heads of VHS machines. My question is does anyone know of other sources
either for Neodymium 'duper magnets', or strong ceramic magnets that I may
be missing out on? Magnets like these come closest to being perpetual motion
machines we have yet to make, and I'd hate to have some just wind up into
the trash because I didn't know they were there :-)

Thanks.!


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Old June 22nd 04, 01:07 PM
Jan Panteltje
 
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Default

On a sunny day (Tue, 22 Jun 2004 08:21:58 GMT) it happened "Greysky"
wrote in
:

ever since I was a child, magnets have held a fascination for me. I've been
collecting them ever since. It used to be that you could always scrounge
loudspeakers for Alnico magnets. Then when the newer ceramic magnets began
to be incorporated into loudspeakers, it became a challenge to remove them
from their enclosures without breaking them. Now, I have to admit, I am
having a ball collecting the new 'super magnets' - like the ones inside hard
drives. There are also cool cylindrical magnets that you can get from inside
the heads of VHS machines. My question is does anyone know of other sources
either for Neodymium 'duper magnets', or strong ceramic magnets that I may
be missing out on? Magnets like these come closest to being perpetual motion
machines we have yet to make, and I'd hate to have some just wind up into
the trash because I didn't know they were there :-)

Thanks.!

There is a big magnetic iron core if you dig deep enough.
There are stars with an extremly strong magnetic field,
very very strong.
We need a composite (non metal) spaceship.
hehe

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Old June 22nd 04, 02:12 PM
Boris Mohar
 
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Default

On Tue, 22 Jun 2004 08:21:58 GMT, "Greysky"
wrote:

ever since I was a child, magnets have held a fascination for me. I've been
collecting them ever since. It used to be that you could always scrounge


Take apart a hard drive. There is a pail of magnets in the head positioning
servo. They are very powerful and will pinch your fingers if yo are not
careful.



Regards,

Boris Mohar

Got Knock? - see:
Viatrack Printed Circuit Designs http://www3.sympatico.ca/borism/
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Old June 22nd 04, 03:06 PM
Steve J. Noll
 
Posts: n/a
Default

On Tue, 22 Jun 2004 08:21:58 GMT, "Greysky"
wrote:

ever since I was a child, magnets have held a fascination for me. I've been
collecting them ever since. It used to be that you could always scrounge
loudspeakers for Alnico magnets. Then when the newer ceramic magnets began
to be incorporated into loudspeakers, it became a challenge to remove them
from their enclosures without breaking them. Now, I have to admit, I am
having a ball collecting the new 'super magnets' - like the ones inside hard
drives. There are also cool cylindrical magnets that you can get from inside
the heads of VHS machines. My question is does anyone know of other sources
either for Neodymium 'duper magnets', or strong ceramic magnets that I may
be missing out on? Magnets like these come closest to being perpetual motion
machines we have yet to make, and I'd hate to have some just wind up into
the trash because I didn't know they were there :-)

Thanks.!


They are magic, aren't they? Have you tried the drop a magnet down a
copper pipe trick?

Steve J. Noll | Ventura California |
| The Used High-Tech Equipment Dealer Directory
| http://www.big-list.com
| The Peltier Device Information Site:
| http://www.peltier-info.com
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Old June 22nd 04, 05:45 PM
Julie
 
Posts: n/a
Default

Greysky wrote:

ever since I was a child, magnets have held a fascination for me. I've been
collecting them ever since. It used to be that you could always scrounge
loudspeakers for Alnico magnets. Then when the newer ceramic magnets began
to be incorporated into loudspeakers, it became a challenge to remove them
from their enclosures without breaking them. Now, I have to admit, I am
having a ball collecting the new 'super magnets' - like the ones inside hard
drives. There are also cool cylindrical magnets that you can get from inside
the heads of VHS machines. My question is does anyone know of other sources
either for Neodymium 'duper magnets', or strong ceramic magnets that I may
be missing out on? Magnets like these come closest to being perpetual motion
machines we have yet to make, and I'd hate to have some just wind up into
the trash because I didn't know they were there :-)

Thanks.!


For purchase:

http://www.gaussboys.com

has a small assortment.

As you are probably aware, the older the drive, typically the bigger the
magnets. The largest that I've found were from an old full-height 5 1/4"
internal 300 MB SCSI drive. Newer drives are a bit disappointing, their
magnets are getting pretty thin and break easily...


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Old June 22nd 04, 06:29 PM
Steve Nosko
 
Posts: n/a
Default


"Steve J. Noll" wrote in message
...
On Tue, 22 Jun 2004 08:21:58 GMT, "Greysky"
wrote:

ever since I was a child, magnets have held a fascination for me. ...


They are magic, aren't they? Have you tried the drop a magnet down a
copper pipe trick?


Now how come I never thought of that one. Know what i'll be doing this
evening...

--
Steve N, K,9;d, c. i My email has no u's.


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Old June 22nd 04, 06:47 PM
Tom Bruhns
 
Posts: n/a
Default

http://www.wondermagnet.com/

"Greysky" wrote in message om...
ever since I was a child, magnets have held a fascination for me. I've been
collecting them ever since. It used to be that you could always scrounge
loudspeakers for Alnico magnets. Then when the newer ceramic magnets began
to be incorporated into loudspeakers, it became a challenge to remove them
from their enclosures without breaking them. Now, I have to admit, I am
having a ball collecting the new 'super magnets' - like the ones inside hard
drives. There are also cool cylindrical magnets that you can get from inside
the heads of VHS machines. My question is does anyone know of other sources
either for Neodymium 'duper magnets', or strong ceramic magnets that I may
be missing out on? Magnets like these come closest to being perpetual motion
machines we have yet to make, and I'd hate to have some just wind up into
the trash because I didn't know they were there :-)

Thanks.!

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Old June 22nd 04, 08:02 PM
Rick
 
Posts: n/a
Default


"Steve Nosko" wrote in message
...

"Steve J. Noll" wrote in message
...
On Tue, 22 Jun 2004 08:21:58 GMT, "Greysky"
wrote:

ever since I was a child, magnets have held a fascination for me. ...


They are magic, aren't they? Have you tried the drop a magnet down a
copper pipe trick?


Now how come I never thought of that one. Know what i'll be doing this
evening...

--
Steve N, K,9;d, c. i My email has no u's.



I just tried it with a 1/2 inch copper pipe and a 1/4 inch cube magnet.
Incredible! I did not know it would have that much of an effect!



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Old June 22nd 04, 08:12 PM
Tom Bruhns
 
Posts: n/a
Default

Boris Mohar wrote in message . ..
....
Take apart a hard drive. There is a pail of magnets ...

^^^^
What a great mental image! I was in need of a chuckle today, and you
came through. Thanks. (BTW, the OP had already mentioned the HD
magnets...)
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