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Attitude New user 49 Posts |
I am on the road a lot with DJs and the Magnet will kill the cd-rom. I am looking for a case that the power of the magnet will not get out??
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aagrawal_2000 New user 55 Posts |
Well,
To control a magnet, the only thing that I can think of would be a lead case. I don't know of anyone who sells lead cases. I don't have a PK magnet, but I guess someone would have to sell it. It might be more helpful to e-mail stores directly; they've probably gotten these requests before and they might know where to send you. Aagrawal |
Devils Advocaat Loyal user London 248 Posts |
Attitude,
I have an m5, the best thing you can do is nest it; mine fits perfectly inside a jeweller’s ring box (plastic, 2 inch square) padded-out with foam. This is then housed in a slightly bigger (cardboard) box, also padded. Pass your watch over the whole set-up and see if it stops. It shouldn't. Frank.
"My Karma ran over my Dogma..."
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ddyment Inner circle Gibsons, BC, Canada 2499 Posts |
'Twas written:
Quote:
To control a magnet, the only thing that I can think of would be a lead case. Lead (or any other non-ferrous material) has essentially no effect whatsoever on a magnetic field. Lead is used to shield against radiation (particularly X-rays), not magnetism. Magnetic flux lines can't be blocked. Any flux line that leaves one pole of the magnet will arrive at the other pole. They can, however, be made to take "easier" paths, through the use of ferrous materials (particularly an iron alloy called mu-metal). If one surrounds a magnet with such material, the lines of force will prefer to go through the metal, rather than describe their usual path through open space. There are two difficulties with this, however. First, if the surrounding container is not perfectly symmetric with respect to the magnetic flux lines, many of them will escape. Second, if the container is too close to the magnet, the large number of flux lines there will "saturate" the material (i.e., there will be too many flux lines for the material to accommodate), which will thereby lose much of its effectiveness. This can be counteracted by increasing the thickness of the material, but this will become impractical if the magnet is in too close proximity. Incidentally, a CD-ROM is an optical storage medium, not a magnetic one; the presence of a magnet should not damage it (unless you drop the magnet on it!). ... Doug
The Deceptionary :: Elegant, Literate, Contemporary Mentalism ... and More :: (order "Calculated Thoughts" from Vanishing Inc.)
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Devils Advocaat Loyal user London 248 Posts |
...Maybe Attitude refers to ROM *Drives* as opposed to media...
Frank.
"My Karma ran over my Dogma..."
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KingStardog Inner circle 2134 Posts |
E-mail the folks at wondermagnets.com and ask if you can buy one of their shipping boxes. These are supposed to block the field so they can safely ship the magnets with other goods, and not damage anything.(I don't know myself, that's what the site says.)
...think not that all wisdom is in your school. You may have studied other paths,but, it is important to remember that no matter who you are or where you come from, there is always more to learn.
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Mr Amazing Special user 617 Posts |
I'm not 100% sure about this, but I would guess that putting a 'reversed' magnet together with the original one would "block" both magnet's fields to some extent. A case would probably be needed to keep them in this condition, because it's very difficult to hold them reversed like this.
If this does work, then you can have two magnets and when it is time to use them, you simply reverse them (into similar "harmonious" direction) for extra power. I imagine that the problem could be that non-natural magnets get de-magnetized if they're stored together in the 'wrong' direction... but again - I'm not sure about this either. Ask a physics teacher or similar. (Actually, please tell us here on the Café - I'm really curious myself). Maybe Mr Dyment knows? |
MichaelSibbernsen Special user Omaha, NE 513 Posts |
Two magnets with like poles forced against each other would only alter the total magnetic field shape and not necessary the area that it permeates. Besides, such an arrangement might not only be difficult to achieve with Neodymium Iron Boron magnets, but maybe dangerous (to fingertips) as well.
Magnetic fields, although very strong near the surface of a magnet, have a very fast drop-off rate as you move away from them. Simply placing the magnet in the center of a foam filled box 6" by 6" square, would probably be enough of a distance to protect any near by electromagnetic media. As mentioned before by Doug, CD's would not be effected anyway. For further protection, with unusually strong PK magnets, you could line said box with a soft ferromagnetic sheet metal available at the local hardware store. This will act as a simple "mu-metal", helping redirect the weaker outer magnetic fields, and thus producing an effective shield. This is the method that Force Field (aka Wonder Magnet) uses for their shipments through the mail. Best in Magic and Science, Michael Sibbernsen |
Thomas Wayne Inner circle Alaska 1977 Posts |
Quote:
On 2002-10-12 17:21, aagrawal_2000 wrote: LOL. I mean truly, gut-busting LOL. Regards, Thomas Wayne (PS. Everyone knows lead is only good for containing and controlling Kryptonite. Geez.)
MOST magicians: "Here's a quarter, it's gone, you're an idiot, it's back, you're a jerk, show's over." Jerry Seinfeld
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MichaelSibbernsen Special user Omaha, NE 513 Posts |
And possibly Neodymium-Kryptonite-Boron magnets. Terribly powerful things, but the glowing green light they emit can be a tip-off.
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MagicBrent Inner circle 2574 Posts |
I've had success using dried old washcloths to wrap the PK in an then place the sh***ed materials in a ziplock bag.
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Bob Sanders Grammar Supervisor Magic Valley Ranch, Clanton, Alabama 20504 Posts |
Storage of these magnets is definitely a problem. I'm beginning to believe box of rattle snakes would be just as welcomed. It is good to know that CDs are not harmed. But I learned the hard way they will kill your hotel key card.
I have also learned to store them with a playing card in between them just to make them easier to get apart. It still looks bad when your coffee spoon keeps going to your shirt pocket. It makes people believe what they already suspected about magicians. Bob Sanders Magic By Sander |
Spatula545 New user 25 Posts |
What are pk magnets? email me at flashmagicproductions@yahoo.com
12 pennies stacked equals the hight of a dime.
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