From: arl_123234@hotmail.com   
      
   On 4/24/19 5:31 AM, pellis wrote:   
   > On Monday, 22 April 2019 21:48:48 UTC+1, J.B. Wood  wrote:   
   >   
   >> But my question still goes unanswered IMO - Why   
   >> does the curvature of space-time give rise to a force/acceleration?   
   >   
   > Perhaps I can offer a simple intuitive answer, and a reference:   
   >   
   > If you’re near the top of a snow-laden hill on a toboggan and you   
   allow   
   > yourself to start to free-fall down the hill, you will follow a curved   
   > path in space-time (IMO it’s as simple as that; think about it).   
   >   
   > Using EFEs you will need the mass distribution to retro-dict your path,   
   > but it won’t involve a concept of “force”   
   >   
   > Alternatively, you can use Newtonian mechanics, employing the concept of   
   > force.   
   >   
      
   Hello, and I wasn't inquiring about the effects of gravity or whether   
   it's a "true" force or not.  I'm trying to understand its origin and why   
   it should exist in curved space-time.  Examples showing its effect(s) on   
   masses don't address its genesis.  Since gravity can impart kinetic   
   energy to a mass it's a force (Newtonian).  I certainly appreciate the   
   responses thus far (and the fact that the moderator has allowed me to   
   post) but we seem to keep talking past the issue here.  Sincerely,   
      
      
   --   
   J. B. Wood                e-mail: arl_123234@hotmail.com   
      
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