[yor_on (OP)]

What forces can point particles have, and?
where do they (what 'direction(s') do they point?

Like light can have a spin that can be split in ..
And a polarization that can be split in ..
and a electric 'field' that ??
and a magnetic,  perpendicular to ..

And a electron can have a spin,  that you can split in
And a electric charge
And ..

How many do they have, and well, why?


What do you think?

[QuantumClue]

It seems that this question is related somewhat to my question recently on the dimensions of particle. I don't have an answer, other than the normal textbook stuff, and the spin-related cocnerns I had in a seperate thread. Maybe someone else has a more definitive answer.

[graham.d]

Point particles make the maths a whole lot easier.

[lightarrow]

Point particles make the maths a whole lot easier.

Yes. Excepting when we try to investigate what happens in a region of space very close to the particle, of course...