Can someone explain to me how two parallel electron beams can be attracted to each other according to special relativity.
Classical physics says each beam will generate a magnetic field so the beams will be attracted to each other.
Relativity says the magnetic field only exists for observers...
The purpose of this post is to present the established tenets of classical physics and to create a point where this thread can be split if there is still disagreement as to the validity of these tenets.
If the participants in this thread agree to the split, all further discussion of the...