From: arl_123234@hotmail.com   
      
   On 07/09/2017 08:14 AM, Ralph Frost wrote:   
   > Please pardon my poorly worded question. Are there ~independent methods   
   > of detecting a north pole/flux of a magnet from a south pole/flux?   
   >   
   > When I hold two rod magnets, one in each hand, and the center ends   
   > attract, I can obtain repulsion two ways by giving either magnet/hand   
   > one-half spin.  Thus it appears that repulsion is attraction with   
   > one-half spin (and potentially, 'north is south with one-half spin'...)   
   >   
   > Generally, we are taught that one of these repulsions is 'north-north'   
   > and the other is 'south-south' (like-pole repulsion).   
   >   
   > I understand that if I am given an unmarked magnet, that I can assign   
   > its ends a north or south label by the way it orients, say, within the   
   > local geomagnetic field and ~relative to our prevailing planetary   
   > spatial orientation relative to the 'North Star' -- Polaris.   
   >   
   > But, I wonder, and my question is, other than the inherited, nested, or   
   > cross-dimensional correlation, does physics have any other means or   
   > measures that determine if a repulsive magnetic region is 'north-north'   
   > rather than 'south-south'?  For instance, do they 'look different' under   
   > different spectral scannings?   
   >   
   > I'm curious about this because it seems like our words seem to imply or   
   > identify the existence of two separate 'things' whereas empirically,   
   > there is or seems to be only the one, rather entangled or inseparable   
   > 'thing'.   
   >   
   > Thanks in advance for any clarifications.   
   >   
   > Best regards,   
   > Ralph Frost   
   >   
   > Reality is nested structured~duality.   
   >   
      
   Hello, and I would surmise that given two magnetic field strengths (not   
   necessarily of same magnitude) the repulsive force would be   
   indistinguishable for north-north or south-south given the same position   
   of the magnets relative to one another.  The designation of "north" or   
   "south" is arbitrary but it is tied to the direction (CW or CCW) in a   
   current loop and whether we want to use a "right' or "left" hand rule.   
   If you start with a magnet (e.g. earth) that already has its poles   
   labeled then you can label the poles of a second magnet as north or   
   south depending on whether the force between the magnets is attractive   
   or repulsive.   
      
   Think of magnetic north/south as equivalent to naming one terminal   
   "positive" and the other terminal "negative" on a source of electric   
   potential.  Sincerely,   
      
   --   
   J. B. Wood	            e-mail: arl_123234@hotmail.com   
      
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