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Questions about Magnetism

  1. Apr 25, 2006 #1
    Ok I'm not sure this is in the right forum, and this is a very broad question; I'm just starting to understand magnetism and its relation to the universe. This is basically a bunch of conjecture on my part, could you tell me if I am anywhere near the mark?

    The way I imagine it is this: There are a positive and a negative pole on every magnet, and in fact there are positive and negative poles in every substance, only in a magnetic substance the poles are all facing the same direction. A magnetic field describes the magnetic influence of the magnet, and there are so-called “lines of flux” that run in an arc from one end of the magnet around the edge of the field and to the opposite end, representing the attraction that the magnet itself has to its own opposite pole. If it could, a magnet would form an infinite loop around itself...such is the reason why non-solid substances, their poles free to shift in any direction, form spheres. An infinite loop of magnetism; the most natural and stable shape possible in the universe.
    Questions: If this is true, How is magnetism related to gravity? Why do things with large amounts of mass still have polar magnetic fields even if they are spherical (planets, stars, etc.)? What is the relationship with metals and actual attraction to one another through magnetism (and does this have something to do with their conduciveness to electricity)?

  2. jcsd
  3. Apr 25, 2006 #2
    well... the spherical shape of fluids is not an effect of magnetism, the reason for this shape is surface tension.

    the magnetic field of stars like the sun is created by their streams of plasma.

    and earth's magnetic field is, as far as i know, is creatd by iron in its core...

    Last edited: Apr 25, 2006
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