What does a magnetic/electric field actually consist of?
24 replies, posted
Ok, I can't seem to get a an answer on this from teachers, the internet, anyone. I understand what a magnetic field effectively is, about field lines and how they interact with charges and all that suchlike, but can a more informed Facepuncher help by telling me what a magnetic field actually IS? What is projected out from the magnet/wire? What is physically there to interact with things?
Also, I think we should have a separate board for science threads.
A magnetic field is a field full of magnetos.
[Img]http://verdadeabsoluta.net/wp-content/uploads/2008/03/magneto.jpg[/Img]
It's the same force that prevents your hand from going through your laptop when you type.
[editline]22nd December 2010[/editline]
[url]http://www.wimp.com/feynmanterms/[/url]
Watch this, great video, great man...
[QUOTE=Number-41;26881534]It's the same force that prevents your hand from going through your laptop when you type.
[editline]22nd December 2010[/editline]
[url]http://www.wimp.com/feynmanterms/[/url]
Watch this, great video, great man...[/QUOTE]
I understand that it's the electromagnetic force, but that doesn't explain at a fundamental level what the field lines, the lines of force are.
[editline]22nd December 2010[/editline]
But you can tell that guy's a genius from the way he speaks
Fucking Miracles
it's the force
Fucking magnets
Its a miracle
Electrons?
Virtual photons.
If you break it further and further down, you'll never find a satisfying answer. We're only talking about models here after all. Science doesn't present us the truth, it shows us a possibility that explains the most.
It's to do with electron valencies (for iron), electron spins and enthalpy.
Isn't it just a bunch of molecules pointing in the same direction, so one side gets a negative charge, and the other gets a positive charge? Then, when similar molecules come nearby, they want to equal out the difference, thus attracting two opposites to eachother?
[QUOTE=Matte;26884624]Virtual photons.[/QUOTE]
Don't know why this was rated dumb, I think it may be right
[QUOTE=Matte;26884624]Virtual photons.[/QUOTE]
this is correct
[QUOTE=Lord_Skellig;26883167]I understand that it's the electromagnetic force, but that doesn't explain at a fundamental level what the field lines, the lines of force are.
[editline]22nd December 2010[/editline]
But you can tell that guy's a genius from the way he speaks[/QUOTE]
I think the actual form of the field can only really be explained in terms of vector fields and functions. Generally a field line is a collection of points that share the same attributes, a field line corresponds with a certain direction and magnitude of the magnetic force. A particle following a field line will experience a constant force (in magnitude & direction)
Another example are the equipotential fields of the earth's gravitational force: it's clear that you can state that there are certain points around the earth where objects all have the same potential energy (objects of the same mass, that is), or in other terms that the amount of work remains unchanged when you move around in these fields (in the condition that you don't include other forces that are perpendicular to the field).
So basically you can compare it (sort of) to the isobars on weather maps, height lines on topographical maps, etc...
I hope I didn't state any bullshit, I haven't seen magnetism yet in my courses...
Magnets have natural resistancy called [b]flux[/b], or lines of flux, that when crossed push against each other. The reason they react is because or molecular radioactivity.
Google flux.
Unpaired electrons, it's just that simple.
(well, it's not really that simple, but you get what I'm saying.)
[QUOTE=VeniVidiVici74;26909321]Magnets have natural resistancy called [b]flux[/b], or lines of flux, that when crossed push against each other. The reason they react is because or molecular[B] radioactivity[/B].
Google flux.[/QUOTE]
wat
[QUOTE=VeniVidiVici74;26909321]Magnets have natural resistancy called [b]flux[/b], or lines of flux, that when crossed push against each other. The reason they react is because or molecular radioactivity.
Google flux.[/QUOTE]
This is an affront to science and math!
The integral of a magnetic vector field =/= magnetism
fucking magnets.
If you want to look at it basically, an electromagnetic field or wave consists of photons.
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