XPost: comp.theory, sci.physics   
   From: PointedEars@web.de   
      
   Mild Shock wrote:   
   ^^^^^^^^^^   
   Please repair this.   
      
   > What if the planets in certain galaxies   
   > form a turning machine.   
      
   They do not.   
      
   You appear to be very confused about the applicability of computer science   
   to natural science.   
      
   Also, you should learn how to post.  This was a completely new question, so   
   you should not have posted it as a follow-up.  Also, you should not have   
   top-posted, i.e. you should not have appended the full quotation of the   
   previous postings; such is maybe appropriate in business communication, but   
   not in Usenet.  It is also not appropriate to crosspost without Followup-To   
   to *one* newsgroup set.   
      
   I strongly suggest that you subscribe to news:news.announce.newusers, or   
   consult Usenet posting guidelines on the Web to educate yourself about   
   the communication medium that you are using here.  Lest you be killfiled   
   rather quickly by people.   
      
   > Could Keppler   
      
   Johannes _Kepler_   
      
   > have modelled a 3 planet system.   
      
   Yes, he did, but not exactly.   
      
   > Can we model a 3 planet system now ?   
      
   Obviously; there are simulations of the Sol System e.g. in Universe Sandbox.   
    But the 3-body-problem is not about 3 planets, but more general.   
      
   There is no *general* *exact* solution to this problem; just a solution for   
   the *restricted* 3-body-problem in which one of the objects has a very large   
   mass; the second object, e.g. a gas giant like Jupiter, has a smaller mass   
   and is very far away from the first object; and the third object. e.g. an   
   asteroid, has a small that is small enough to be negligible, and is   
   comparably far away from the first and second object, respectively.   
      
   And this is neglecting general-relativistic corrections that lead to an   
   additional contribution in the precession of the perihelia (orbits are not   
   actually ellipses, closed curves).   
      
   F'up2 sci.physics   
      
   --   
   PointedEars   
      
   Twitter: @PointedEars2   
   Please do not cc me. / Bitte keine Kopien per E-Mail.   
      
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