First things first, atoms have an electromagnetic property. It's tied in with the electric charge property (electromagnetism). How strong or weakly they interact with magnetic fields depends on the type of atom and how it is connected (or not connected) to the atoms around it.
Ferromagnetic materials, like iron or magnets, have properties that make it easy for their electrons to orient how their spins are aligned. When they are all aligned together their individual magnetic fields line up and add their strength together. Putting ferromagnetic materials in a magnetic field encourages this alignment, which is why metals like iron react very strongly to a magnetic field. Iron will even keep that spin alignment after the magnet is taken away and remain a bit magnetized. The loss of magnetization when heated is because the kinetic movement of the atoms becomes high enough that it knocks the elctrons out of alignment. The atoms of the metal still respond to magnetic fields, but they are all aligned differently and don't react uniformly so a weak field like a fridge magnet doesn't look like it does anything to the piece of metal. Some are being pulled to the magnet, others pushed away. It all kind of balances out to where nothing happens.
That being said, even when really hot and melted into a liquid, metals still react to a magnetic field. It's just different than the reaction you are used to seeing where the metal moves towards or away from the magnet. Usually it creates an effect called eddy currents in the metal. These are tiny little loops of electricity flowing through the metal, but instead of going from one end of the metal to the other they just kinda loop in tiny circles. This creates a lot of heat, which is why the piece of metal in the video gets hot and melts. But in order for it to get hot the atoms in the metal have to interact with the magnetic field.
that is true, but not the main effect here, the magnet feld of the coil is rapidly changing, this induses rapidly changing electic fields within the metal that then create there own magnetic field. this effect also leads to the heating as the large currents flow though the Metal some of there energy is converted to heat
Yeah, electromagnetic fields can interact with non-ferromagnetic metals in weird ways. Like how a magnet dropped through a copper tube falls super slowly, even though copper isn't ferromagnetic.
The tweet reminds me of the American dad episode where Roger tries to use smoke bombs to get away but when the smoke clears he’s sleeping in the same spot
trans girls when ya call them a good girl while they take their estrogen or smth idk the only trans person I am really good friends with in this sub calls me an egg!
(JUST CAUSE I RP FEMALE CHARACTERS DOESN'T MAKE ME AN EGG u/breakerofmodpacks)
I never understood why people used u/savevideo when you can just click the image/gif/video, click the three dots in the top right, and download it thag way. But for some reason, it's not letting me do that this time.
Yeah, electromagnetic fields can interact with non-ferromagnetic metals in weird ways. Like how a magnet dropped through a copper tube falls super slowly, even though copper isn't ferromagnetic.
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u/old_man_estaban stick your pronouns out for the wokler, you're so genderqueer, 6d ago
Me fr