From: helbig@asclothestro.multivax.de   
      
   In article ,   
    writes:   
      
   > I read somewhere that it was possible to   
   > see some BH in nature that do not spin.   
   >   
   > How exactly can this be when   
   > everything in nature always shows that   
   > any vortex formation ends up with a spin?   
   >   
   > r.y   
   >   
   > [[Mod. note -- It seems very likely that all black holes in nature do   
   > indeed spin.  But it might be that some spin quite slowly.   
   > -- jt]]   
      
   I don't know if this would necessarily be true for primordial black   
   holes.  Of course, we don't know whether they exist, and there are   
   various theories about their formation.  Interestingly, if LIGO detects   
   any low-mass black holes (not much lower than those already detected),   
   they will probably be primordial, since there is no other way known to   
   form them.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)