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> The point is that magnetic field lines are a convenient diagrammatic tool, but don't have a direct correspondence to any physical reality. Magnetic field lin
by snissn 9y ago
> The point is that magnetic field lines are a convenient diagrammatic tool, but don't have a direct correspondence to any physical reality.
Magnetic field lines correspond as much to physical reality as anything possibly can. https://physics.stackexchange.com/a/80913 https://physics.stackexchange.com/a/80913
Also here's a trippy video: https://www.youtube.com/watch?v=rUZsojDdEbE https://www.youtube.com/watch?v=rUZsojDdEbE
- caf 9y agoThere's a vector field, but it's continuous - you can't point to two points in space and say "a field line passes through this one, but not this one".
- snissn 9y agoYou can point to points in space and say that the scalar value of their vector field is the same or different, and say whether or not there is a continuous path of scalar value sameness between them.