I’ve been musing about magnets recently and I have a number of questions about them … particularly magnetic flux lines. I've read the Wikipedia entry (
magnetic field) and, if anything, it needs an application of Occam's razor. Now if anyone has any more understandable answers to these queries please respond (to
muser@tiac.net) or comment:
- What exactly are flux lines (a force field, potential energy, streams of electrons or some subparticles, etc)?
- If it is a force field, why don't other force fields, like gravity, exhibit such flux lines?
- What geometric shape do flux lines take? A catenary?
- Are the flux lines of a strong magnet closer together than those of a weak magnet?
- If this is the case, can a magnet be made so strong that its flux lines become a flux plasma?
- Are the flux lines (pure) force or is there any matter therein however minute (even in theory)?
- How far out do flux lines extend from the magnet and is this a function of the magnet’s strength?
- Must flux lines always connect north-to-south or can they extend out to infinity?
- If there is a limit to flux line extension, does this mean that no flux lines can come out of a magnet absolutely and directly along the line of its orientation?
- Are all the flux lines of a single magnet of equal attractive strength?
- If the Earth’s magnetic flux lines lie along its surface, why don’t they disrupt things (other than to point a compass)? One would think that, if they can deflect cosmic rays out in space, they would create more mischief here on
terra firma?
- Do flux lines extend into the magnet itself (in other words would a compass point north if one went down into a deep mine)?
- If flux lines do extend inside a magnet, what happens at the exact center point of the magnet?
- Does magnetism exist, as I suspect, at the atomic level?
- If so, what atomic structural characteristic makes an atom or molecule magnetic?
- Are all metallic elements magnetic even minutely?
- Can gases be magnetic?
- What was the strongest magnet ever made? Why?
- Why does moving a conductor across the flux lines of a magnet produce electricity? Does such movement need to be exactly orthogonal … or at what angle does this effect disappear?
- If the Earth’s molten core were eventually to solidify, would it still be magnetic?
Enough?