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Neodymium Magnets and SD Cards
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Sep 1, 2020 17:25:50   #
User ID
 
Who here knows how insanely powerful neo magnets are, especially when stacked as shown in the attached photo ? Who here has some ideas about what those three stacks are doing to the image files on that SD card ?

Don’t be looking for any tricky stuff in the photo. It’s a SOOP iPhone snap. The scene as depicted is real.

I realize that this makes some digital photographers cringe.


(Download)

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Sep 1, 2020 17:32:22   #
Longshadow Loc: Audubon, PA, United States
 
Electronics are typically not affected by magnetism.
But I would not store a credit card near them.
Have you played with a magnet from a HDD?

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Sep 1, 2020 17:33:26   #
johngault007 Loc: Florida Panhandle
 
Longshadow wrote:
Electronics are typically not affected by magnetism.
But I would not store a credit card them near.




Or any magnetic based media for that matter

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Sep 1, 2020 17:34:03   #
Architect1776 Loc: In my mind
 
User ID wrote:
Who here knows how insanely powerful neo magnets are, especially when stacked as shown in the attached photo ? Who here has some ideas about what those three stacks are doing to the image files on that SD card ?

Don’t be looking for any tricky stuff in the photo. It’s a SOOP iPhone snap. The scene as depicted is real.

I realize that this makes some digital photographers cringe.



Reply
Sep 1, 2020 17:35:09   #
Longshadow Loc: Audubon, PA, United States
 
johngault007 wrote:


Or any magnetic based media for that matter


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Sep 1, 2020 18:07:48   #
Toby
 
Longshadow wrote:
Electronics are typically not affected by magnetism.
But I would not store a credit card near them.
Have you played with a magnet from a HDD?


Not sure about that. Electricity is made from using magnets and viceversa

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Sep 1, 2020 19:10:31   #
Soul Dr. Loc: Beautiful Shenandoah Valley
 
Longshadow wrote:
Electronics are typically not affected by magnetism.
But I would not store a credit card near them.
Have you played with a magnet from a HDD?


If you want a really strong one, take one out of a magnetron from a micro wave oven.
When I was an appliance tech I used have a few of them. They can smash your fingers if you are not careful handling them!

will

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Sep 1, 2020 19:50:19   #
Longshadow Loc: Audubon, PA, United States
 
Toby wrote:
Not sure about that. Electricity is made from using magnets and viceversa


Moving a coil of wire through a magnetic field (or vice-versa), the magnet has to be moving;
moving electricity through a coil of wire (DC will generate a constant magnetic field, AC will generate an alternating magnetic field.

There are no coils in a logic IC that will generate a current in the IC.

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Sep 2, 2020 05:07:21   #
User ID
 
Longshadow wrote:
Electronics are typically not affected by magnetism.
But I would not store a credit card near them.
Have you played with a magnet from a HDD?


The neo magnets are really great for disabling expired credit cards before discarding them.

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Sep 2, 2020 05:31:29   #
chrissybabe Loc: New Zealand
 
Longshadow wrote:
Moving a coil of wire through a magnetic field (or vice-versa), the magnet has to be moving; moving electricity through a coil of wire (DC will generate a constant magnetic field, AC will generate an alternating magnetic field.
There are no coils in a logic IC that will generate a current in the IC.


In fact there are a whole lot of 'wires' in a logic IC. Google it sometime. You don't have to move a coil through a magnetic field to produce an electric current - you only have to move a WIRE through the field.
And there are absolutely tons of wires inside an IC - both the very fine gold wires connecting the pins to the chip plus semiconductor 'wires' used as connections on the chip.
If you want to experiment then I might suggest you DO NOT use a good SD card with just taken photos on it.

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Sep 2, 2020 05:42:01   #
User ID
 
chrissybabe wrote:
In fact there are a whole lot of 'wires' in a logic IC. Google it sometime. You don't have to move a coil through a magnetic field to produce an electric current - you only have to move a WIRE through the field.

And there are absolutely tons of wires inside an IC - both the very fine gold wires connecting the pins to the chip plus semiconductor 'wires' used as connections on the chip.

If you want to experiment then I might suggest you DO NOT use a good SD card with just taken photos on it.
In fact there are a whole lot of 'wires' in a logi... (show quote)

Seems to me that a good card with photos on it is necessary if the outcome of the experiment is to be relevant.

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Sep 2, 2020 05:53:08   #
chrissybabe Loc: New Zealand
 
User ID wrote:
Seems to me that a good card with photos on it is necessary if the outcome of the experiment is to be relevant.

Maybe I should have been clearer, my bad, should have said photos that may have been recently taken but were not needed ever again.

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Sep 2, 2020 07:34:07   #
LFingar Loc: Claverack, NY
 
User ID wrote:
Who here knows how insanely powerful neo magnets are, especially when stacked as shown in the attached photo ? Who here has some ideas about what those three stacks are doing to the image files on that SD card ?

Don’t be looking for any tricky stuff in the photo. It’s a SOOP iPhone snap. The scene as depicted is real.

I realize that this makes some digital photographers cringe.


Simple fact: SD cards are not affected by magnetic fields. That has been reported on numerous times. Xrays, such as airport scanners, have no effect either.

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Sep 2, 2020 08:07:45   #
lsaguy Loc: Udall, KS, USA
 
Soul Dr. wrote:
If you want a really strong one, take one out of a magnetron from a micro wave oven.
When I was an appliance tech I used have a few of them. They can smash your fingers if you are not careful handling them!

will


DO NOT DO THIS!!!!
When it says "No user serviceable parts inside" heed the warning. A friend of mine didn't and when he accidentally touched the terminals of the capacitor inside he was thrown across his two bay garage. Autopsy a month later, after he died from a massive heart attack, showed extreme damage to his heart from the shock.

Rick

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Sep 2, 2020 08:15:06   #
burkphoto Loc: High Point, NC
 
User ID wrote:
Who here knows how insanely powerful neo magnets are, especially when stacked as shown in the attached photo ? Who here has some ideas about what those three stacks are doing to the image files on that SD card ?

Don’t be looking for any tricky stuff in the photo. It’s a SOOP iPhone snap. The scene as depicted is real.

I realize that this makes some digital photographers cringe.


So what was the outcome of this experiment? Did the magnets erase the card?

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