Magnetism and photographic imagery

cliveh · Jul 13, 2012

Could you employ magnets beneath the contact printing process of Cyanotypes to create special effects?

Photo Engineer · Jul 13, 2012

No. The Iron salts present are not magnetic!

PE

cliveh · Jul 13, 2012

Iron is magnetic!

E. von Hoegh · Jul 13, 2012

cliveh said:
Iron is magnetic!

The iron salts are not.

cliveh · Jul 13, 2012

E. von Hoegh said:
The iron salts are not.

Oh, not even a little bit?

tkamiya · Jul 13, 2012

Only if you put some salt and pepper on it.

Photo Engineer · Jul 13, 2012

Not even a little bit and even with salt, pepper, oregano and basil! NOT MAGNETIC!

Some Stainless Steel is non-magnetic as well and it is basically iron!

PE

illumiquest · Jul 13, 2012

Well this has been entertaining.

cliveh · Jul 13, 2012

So are we saying ferric ammonium oxalate has no magnetic properties?

Oxleyroad · Jul 13, 2012

Yes it has been interesting, and I could go on about how you can influence the magnetic characteristics of stainless steel, but it has absolutely nothing to do with making prints.

cliveh · Jul 13, 2012

Oxleyroad said:
Yes it has been interesting, and I could go on about how you can influence the magnetic characteristics of stainless steel, but it has absolutely nothing to do with making prints.

Why should it be about making prints?

Photo Engineer · Jul 13, 2012

cliveh said:
So are we saying ferric ammonium oxalate has no magnetic properties?

I have a suggestion.

Go out and buy the biggest and strongest magnet you can and then try to drag some Ferric or Ferrous salt out of solution with it. If you do, then patent it and write it up for your Nobel Prize.

PE

Michel Hardy-Vallée · Jul 13, 2012

Curses. I was expecting something novel from this thread.

removed account4 · Jul 13, 2012

the heck with a rare earth or electro magnet
throw an electric charge through the cyanotype
while you print it and its subject and see if you can get a cyanokirilian print

Worker 11811 · Jul 13, 2012

What about a strong, alternating magnetic field such as that which might be generated by a rotating drum with magnets fixed to its surface in alternate N-S-N-S fashion?

You can use this technique to REPEL copper, aluminum and other non-ferromagnetic metals. It's the eddy currents which cause the repulsion.
This is how trash recycling machines separate ferromagnetic metals, non-ferromagnetic metals and paper/plastic/trash. First, they use a magnet to suck up the steel and iron. Then they use a rotating drum magnet to repel the copper, aluminum, etc. into a chute.

Would this technique work in our case?

tkamiya · Jul 13, 2012

Photo Engineer said:
Not even a little bit and even with salt, pepper, oregano and basil! NOT MAGNETIC!

PE

But if you add some imported Parmesan Cheese, viola! It sticks to a magnet!

Photo Engineer · Jul 13, 2012

NO Tk. I tried it with a vintage Parmegiano Reggiano and it did not work! Sorry.

I am working on a Molle to see if it will work!

PE

Gerald C Koch · Jul 14, 2012

It is important not to confuse atoms with ions. Their magnetic properties are very different.

There are three types of magnetic susceptability; paramagnetism, diamagnetism, and ferromagnetism. The first two are extremely small and need special equipment to be measured. Most materials exhibit either paramagnetism or diamagnetism. A very few substances like iron exhibit ferromagnetism.

E. von Hoegh · Jul 14, 2012

Photo Engineer said:
Not even a little bit and even with salt, pepper, oregano and basil! NOT MAGNETIC!

Some Stainless Steel is non-magnetic as well and it is basically iron!

PE

Nickel is magnetic, and nickel isn't iron.

holmburgers · Jul 14, 2012

Can light or radiation have an effect on ferromagnetism, to a degree that it could be utilized in some fashion to make an image? I'm kind of thinking along the lines of Xerox; where a charged plate of selenium loses that charge with light exposure. Any kind of similar phenomenon we can exploit with magnetism?

E. von Hoegh · Jul 14, 2012

holmburgers said:
Can light or radiation have an effect on ferromagnetism, to a degree that it could be utilized in some fashion to make an image? I'm kind of thinking along the lines of Xerox; where a charged plate of selenium loses that charge with light exposure. Any kind of similar phenomenon we can exploit with magnetism?

Curie effect.

Photo Engineer · Jul 14, 2012

E. von Hoegh said:
Nickel is magnetic, and nickel isn't iron.

Never said that it wasn't.

In fact, the AlNiCo magnet was one of the strongest until recent advances in materials science passed it up. I don't know what the leader is now.

Under very high magnetic force, it has been demonstrated that most objects are magnetic. In fact, a recent demo on TV showed a spider suspended in a chamber, in mid air, by a huge magnetic field.

The electromagnetic forces allow electrons to create magnetic fields and magnetic fields create electricity. This has been known for hundreds of years, and was demonstrated by Benjamin Franklin among others. These fields can influence radiation, but they cannot influence light. Gravity can influence light, but there is no electrogravitic force or magnetogravitic force (as once was thought) that can combine all 3 forces and allow control over light, magnetiism and electricity.

PE

Mike Ware · Jul 14, 2012

Faraday Effect

Put "Faraday Effect" into Wikipedia, and go from there.
It's been known almost as long as photography.
Not the easiest way to modulate an image, I think ...

Steve Smith · Jul 14, 2012

E. von Hoegh said:
Nickel is magnetic, and nickel isn't iron.

And cobalt.

Steve.

cliveh · Jul 14, 2012

Photo Engineer said:
These fields can influence radiation, but they cannot influence light. PE

But can they influence chemical reaction?

Magnetism and photographic imagery

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