
I set myself an exercise: To think about ferromagnets, domains, and the Curie point.
And, obediently doing his homework, I “spread his mind along the tree” a little and at the same time thought about the sensational “magnetic liquids” at the time.
The pictures are impressive and even exciting!
I read a whole article about their remarkable properties in the magazine “Scientific.
American”, and there, I remember, there was an interesting photograph of a lead ball “floating on the surface” of a layer of magnetic liquid.
Here is a very recent quote from the journal “Science and Life” for September 2025.
(It’s like telepathy. I thought about magnetic fluids, and it turns out there’s already an article about them in a magazine! That is, I perceived with my Superconsciousness the Temporal Wave, obviously, of the authors of this article, which diffused into my Consciousness.)
“The phenomenon of heavy bodies floating under the action of an inhomogeneous magnetic field immersed in a magnetic liquid has made it possible to use magnetic liquids in mining and processing processes. An inhomogeneous magnetic field leads to a condensation of the magnetic liquid, as a result of which non-magnetic particles of high density, such as copper, lead, and gold, float up. Since the inhomogeneity of the magnetic field can be easily changed over a wide range, it is possible to make particles of a certain density float. This became the basis for the creation of a technology for magnetic separation of ores by density. A mixture of particles of different densities falls on a layer of magnetic liquid hanging between the poles of the electromagnet. The current in the electromagnet can be adjusted so that the light particles of the mixture float in the magnetic liquid, and the heavy ones sink. If the poles of the electromagnet are set obliquely, light particles will move along the surface of the layer and the process of separation of the mixture will become continuous: heavy particles will fall through the layer of magnetic liquid and enter one receiver, and light particles will roll down its surface into another (5).
For more information, see: https://www.nkj.ru/archive/articles/4971 / (Science and Life, MAGNETIC FLUID)”
End of quote.
I return to the lead ball from the “Scientific American” magazine.
There, as in the above quote, the emphasis was on the fact that a magnetic liquid CHANGES its specific gravity under the influence of a magnetic field, and therefore objects that usually sink into it can FLOAT to its surface if we apply a constant magnetic field accordingly, which will CHANGE the specific gravity of the liquid, making it arbitrarily “heavy.”
After thinking about this photo of a lead ball floating on the surface of a relatively “light” magnetic liquid, I came to the conclusion that THERE IS NO FLOATING of a ball on magnetic liquid!
The magnetic field of a strong permanent magnet DOES NOT CHANGE THE SPECIFIC GRAVITY OF the magnetic liquid, but its VISCOSITY. It turns into a kind of very viscous “asphalt, pitch” and therefore the ball, CAREFULLY LOWERED ONTO THIS very viscous layer, DOES NOT SINK INTO IT!
And if the ball were resting at the bottom of a cup with this liquid, and we attached the same strong permanent magnet, then the ball WOULD NOT BUDGE and WOULD NOT FLOAT ANYWHERE!? Because the field would change the VISCOSITY of the liquid, not its specific gravity!
(Glass, by the way, is also, strictly physically speaking, nothing more than a highly supercooled liquid with enormous viscosity!)
Then I wrote a polite letter pointing out the mistake to a company in Nashville, which advertised its exotic products through the magazine. Of course, there was no answer: Crooks, whether ordinary — everyday, whether “highly intelligent and highly scientific,” do not like “whistleblowers,” even those who KINDLY CORRECT THEM, and it was such a naive fool that I was in their eyes, for their UNNECESSARY truth and try to ignore them, and often treat them badly.
Such a simple story, citizens!
P.S. At the same time, I came up with a way to solve this problem of increased viscosity and make the magnetic liquid REALLY FLUID, despite the strong permanent magnetic field: We need to apply another fast–changing magnetic field to the liquid, which would cause the ferromagnetic microparticles in it to vibrate, and then the viscosity of this liquid would decrease (with the appropriate frequency and intensity). alternating magnetic field).
Remember the old “Chladni figures” and the standing waves of light sand in a resonator tube with a speaker at one end.
If I’m wrong, let my seniors correct me.
3 IX 2025