On Thursday, February 28, 2019 at 6:45:59 PM UTC-10, Libor Striz wrote:   
   > omnilocom Wrote in message:   
   > >   
   >   
   > > The moment is not for alone electron, it is paired with a proton   
   thatshares the magnetic moment. It is observable only if anexternal field is   
   applied.   
   >   
   > > When no external field is applied,no magnetic moment is limited to only   
   two directions.   
   >   
   > There is always the magnetic field   
   > related to the electron orbital angular momentum.   
   > Remember orbit-spin coupling and fine structure splitting of hydrogen atom   
   spectra.   
   >   
   > What external field does is the further splitting of energy levels   
   > related to particular projections   
   > of orbital and spin angular momentum,   
   > known as the Zeeman phenomena.   
   >   
   > The spin angular momentum  is never limited to 2 directions.   
   >   
   > The up and down is just expression for quantisation   
   > of the 1 axis projection of the angular momentum vector,   
   > that shares direction with the magnetic momentum vector.   
   >   
   > The vector norm is hbar . sqrt(s.(s+1)),   
   > the axis projection hbar . s.   
   >   
   > Imagine a sphere   
   > with radius sqrt(3)/2= cca 0.866.   
   >   
   > Imagine 2 horizontal planes,   
   > +0.5 and -0.5 above the sphere center.   
   >   
   > Imagine 2 circles as the intersections of the planes and the sphere.   
   >   
   > Imagine 2 joined conuses,   
   > going from the sphere center to these 2 circles.   
   >   
   > The electron spin vectors are placed anywhere on surface of either conus.   
   >   
   > For the orbital angular momentum,   
   > it is similar, but the planes are at integer values m = -l .. +l   
   > and the sphere has radius sqrt(l.(l+1))   
   >   
   > All is, of course, implicitly multiplied by hbar.   
   >   
   > There is infinite number of values of orbital and spin angular momentum   
   vectors,   
   > but just few values,   
   > when it comes to their projection   
   > on a particular axis.   
   >   
   >   
   > --   
   > Poutnik ( the Wanderer )   
   >   
   >   
   >   
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   Dear Poutnik, you say there always is a B magnetic field everywhere.   
   I disagree. B is about the motion of an electron relative to a proton   
   near a second paired proton and electron. A place can be provided with   
   no motion for the external B field. The atom and its particles can   
   have a flux density of their own, but without an outside target,   
   that field means nothing. It takes two pairs to interact as a B   
   field effect. A lone ion is never realistic.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)