1.) Scientists have recently discovered a massive, donut-shaped (toroidal) region in Earth's outer core, located at low latitudes parallel to the equator. This hidden structure, found in the liquid outer core, consists of lighter elements and affects seismic waves by slowing them down. This finding helps explain the generation of Earth's magnetic field. See attached image.
2.) An ac electromagnet with a copper ring (donut) embedded in one end of an electromagnet will attract nonferrous metals such as gold, silver, copper, aluminum, etc. The coil induces a rotating magnetic field in the copper ring that cancels the primary rotating field of the coil, according to Lenz Law. There is no net magnetic field. However, the two rotating fields both have an inward rotation (circumpolar) due to their opposite rotations. This inward rotation pushes both ferrous and nonferrous metals into the face of the magnet. The other end of the electromagnet without the copper ring will repel non ferrous metals as it does in a conventional electromagnet. See the attached image and this video by Dan Gilbert, an electrical engineer, https://www.youtube.com/shorts/HsCUYNn7Pyc
3.) The circumpolar sky rotation of the northern and southern hemispheres is caused by earth's magnetic field that is generated by this donut-shaped region in earth's liquid outer core. The Earth's magnetic field strength is approximately 0.00005 Tesla at the surface. This is an extremely weak magnetic field. The strength of earth's magnetic field is almost completely canceled out by the circumpolar inward rotations, This creates a so-called gravitational force, which is a secondary effect of electromagnetism, that results in a pushing force (pressure) towards the surface. This pushing force is seen as an attractive force, which we call gravity.
Quote:2.) An ac electromagnet with a copper ring (donut) embedded in one end of an electromagnet will attract nonferrous metals such as gold, silver, copper, aluminum, etc. The coil induces a rotating magnetic field in the copper ring that cancels the primary rotating field of the coil, according to Lenz Law. There is no net magnetic field. However, the two rotating fields both have an inward rotation (circumpolar) due to their opposite rotations. This inward rotation pushes both ferrous and nonferrous metals into the face of the magnet. The other end of the electromagnet without the copper ring will repel non ferrous metals as it does in a conventional electromagnet.
If this is an "ac-electromagnet" then would it work to place a "copper ring (donut) embedded" on BOTH ends? So then BOTH ends would be in attraction to "nonferrous metals such as gold, silver, copper, aluminum, etc" ?
(04-02-2026, 08:34 PM)truesearch Wrote: Perhaps an un-educated question regarding this:
Quote:2.) An ac electromagnet with a copper ring (donut) embedded in one end of an electromagnet will attract nonferrous metals such as gold, silver, copper, aluminum, etc. The coil induces a rotating magnetic field in the copper ring that cancels the primary rotating field of the coil, according to Lenz Law. There is no net magnetic field. However, the two rotating fields both have an inward rotation (circumpolar) due to their opposite rotations. This inward rotation pushes both ferrous and nonferrous metals into the face of the magnet. The other end of the electromagnet without the copper ring will repel non ferrous metals as it does in a conventional electromagnet.
If this is an "ac-electromagnet" then would it work to place a "copper ring (donut) embedded" on BOTH ends? So then BOTH ends would be in attraction to "nonferrous metals such as gold, silver, copper, aluminum, etc" ?
That is an excellent question and I don't have an answer! This is similar in how shaded pole induction motors work, https://youtu.be/wrWwM9O1PJg
I'm trying to figure out why electromagnets and natural magnets (permanent magnets) appear to give different results, as we find in this video, https://youtu.be/3htmWzwCBlg . An ac electromagnetic core will lift an aluminum ring, but a permanent magnet with alternating poles rotating inside an aluminum ring will cause the ring to rotate and not to be lifted. Why the difference?
The nonferrous electromagnet was featured in Popular Electronics in 1962 and was also published by Leonard R. Crow. See attached documents.
(04-07-2026, 11:27 PM)#Que Wrote: Here's a video with a good explanation in how the electromagnet with a nonferrous metal ring embedded in it attracts nonferrous and ferrous metals.
Some readers may find this video also useful like the above one: https://www.youtube.com/watch?v=yHrqikAhAbQ
It shows a FEMM simulation with magnetic flux lines towards the end of the video.
04-08-2026, 08:36 PM (This post was last modified: 04-08-2026, 09:15 PM by #Que.)
(04-08-2026, 09:07 AM)Jim Mac Wrote: Interesting..
I would like to see this effect interact with a copper coil which has current running through it creating a repelling field.
Meaning, if this special EL-magnet was a generator stator- would it cause a copper-coil rotor to rotate while inducing it?
OR if we used this special coil as the output coil itself, what happens to the drag effects then a passing magnet induces it?
Yes, this is definitely interesting! There is both a repelling and an attractive force. The nonferrous ring creates a cone shaped area of attraction in front of the magnet's face (see attached image). Outside of the metal ring is a repulsive force. The special El-magnet could be set at an angle where the rotor would interact with just the repulsive field of the El-magnet.
In the region where the repulsive force and attractive forces are equal, then there is a magnetic locking effect and levitation is possible (Magnetic locking without a superconductor! ). This is like a magnetic lagrange point! Polarity Free Magnetic Repulsion and Magnetic Bound States are are two new effects not found in the literature, so far. Additionally, a special case of bound state called bipolar bound state between free dipole bodies is investigated.
(04-07-2026, 11:27 PM)#Que Wrote: Here's a video with a good explanation in how the electromagnet with a nonferrous metal ring embedded in it attracts nonferrous and ferrous metals.
Some readers may find this video also useful like the above one: https://www.youtube.com/watch?v=yHrqikAhAbQ
It shows a FEMM simulation with magnetic flux lines towards the end of the video.
That's a great reference video while showing a FEMM simulation of the magnetic flux lines!
At this point this phenomena is limited to ELECTRO-MAGNETS and can't be (or hasn't been) demonstrated with a PERMANENT-MAGNET?
Another excellent question. An ac electromagnetic core with alternating poles will lift an aluminum or other nonferrous metal ring without inducing a rotation, but a permanent magnet rotating with opposite poles inside an aluminum ring will induce the metal ring to rotate without being lifted. Why the difference? Both have alternating poles in the metal ring. Both creates a rotating magnetic field in the metal ring.
A permanent magnet has no detectable external electric field. For a DC electromagnet there is a small static electric field around the windings. If the current is changing (AC), a significant induced electric field is generated, which is related to the changing magnetic field. We should be able to achieve the same phenomena with a rotating electret that encapsulates a permanent magnet. The encapsulated magnet will need to rotate with alternating poles inside the metal ring. Since we need a special electromagnet with a nonferrous metal ring to achieve this effect, then we will more than likely also need a special permanent magnet to achieve the same effect.
At this moment, I believe the difference between the electromagnet and permanent magnet is an external electric field (electrostatic induction). I would love to hear what others have to say on this!
