non ferrous magnetism? copper.
result "obtained" during testing a kapanadze type device?
“ magnetizing “ copper is something which is in the “lore” or past FE
Claims ?
Do you have opinion on possible explanation?( for copper.. Or ?
Some opinion expressed:Unfortunate is that that the article in Popular Mechanics is not scientific .Just a story for average Joe Shmoe...
The copper itself is not magnetic, but when its approached by magnets, the electrons on the surface of the copper being rotating.
In an effort to resist the magnet's pull, the electrons briefly create their own magnetic field, which slows down the magnet's descent
https://www.popularmechanics.com/science/a15902858/copper-strong-magnets/The mechanics of this interaction are explained by
Faraday's Law of Induction, and
Lenz's Law,
If you have a strong enough magnetic field all matter is magnetic.
But copper is so weakly magnetic that we can't observe it without very, very large magnetic fields.
So the short answer is "No, copper isn't magnetic."
This can quickly be tested by trying to pick up a penny with a magnet.
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copperMagnetism and electricity are closely related.
When a magnet moves near copper (or other metals) it sets up electrical eddy currents.
The eddy currents will repel the magnet as it falls down the copper tube.
This repulsion pushes against the magnet and slows it down.
https://www.youtube.com/watch?v=5WIKKXdxNH8aluminumMost matter will exhibit some magnetic attraction when under high enough magnetic fields.
But under normal circumstances aluminum isn't visibly magnetic.
https://www.youtube.com/watch?v=yk4ACjzDFRY&t=1sleadEven though lead is not magnetic it can interact slightly with magnetic fields.
By moving a very strong magnet past a piece lead can actually cause the lead to move.
https://www.youtube.com/watch?v=VEIYXomRdLYNickelBecause Nickel (Ni) is ferromagnetic it is used in making Alnico magnets
(consisting of
aluminium,
nickel, and
cobalt).
https://www.youtube.com/watch?v=kUvm4TFAWSQSilverSilver isn’t magnetic.
If silver isn’t magnetic, how do metal detectors find it?
Metal detectors are able to find non-magnetic metals, like gold or silver, using a principle called the Lenz effect.
Moving the metal detector over a gold coin will set up a slight electric field in the coin.
The metal detector can sense this field and alert you to the coin.
https://www.youtube.com/watch?v=PQk95NcNa_sstainless steelSince it contains iron, a magnetic metal, it would seem that stainless steel would be magnetic.
However, when nickel (Ni) is added to stainless steel the result
is a non-magnetic form of stainless steel (called austenitic stainless steel).
https://www.youtube.com/watch?v=O9DaKP2PhL4Titanium Titanium-weakly magnetic.. also exhibits the Lenz Effect but to a lesser extent that many other metals.
For example, when a magnet is passed over a metal like silver, copper, aluminum, or brass,
the moving magnet causes small electrical eddy currents to form in the metal.
The electrical eddy currents have their own magnetic field which interacts with the moving magnet.
The result is that the moving magnet causes the metal to move without touching it.
With more sensitive equipment the Lenz Effect could be measured in titanium.
https://www.youtube.com/watch?v=1naZTyd361UWesley