From: helbig@asclothestro.multivax.de   
      
   In article <29a2dc35-7ff1-4ba1-bc22-a2e1262732abn@googlegroups.com>,   
   israel socratus  writes:   
      
   > Is electron's spin real?   
   > Fact.   
   > In 1925, Samuel Goudsmit and George Uhlenbeck claimed that   
   > some of the mischievous features of the hydrogen spectrum could be   
   >  successfully explained by assuming that electrons act as if they actually   
   have a spin.   
   > Opinion.   
   > Because electron is spinning with a rotational velocity equivalent to the   
   speed   
   > of light (which is practically impossible) the only conclusion is that an   
   electron   
   >  can't spin about its own axis, and thus, spin is just a representative term.   
   > Result.   
   > There was a time when we wanted to be told what an electron is.   
   > The question was never answered. No familiar conceptions can be woven   
   > around the electron; it belongs to the waiting list.   
   > --- Sir Arthur Stanley Eddington   
   >   
   > We know electron by what it does, not by what it is.   
      
   Of course, an electron is not a tiny hard sphere spinning with an   
   angular momentum which can be understood with classical physics.   
   However, spin is not just a label like color in QCD or isospin, but   
   really has something to do with angular momentum, as is shown by the   
   Einstein--de Haas effect.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)