XPost: sci.physics.relativity   
   From: physfitfreak@gmail.com   
      
   On 2/16/25 9:47 PM, Physfitfreak wrote:   
   > On 2/16/25 9:42 PM, Physfitfreak wrote:   
   >> My guess is that the information of its disappearance will travel   
   >> towards Earth at, or below, the light's speed (i.e. max speed for any   
   >> physical quantity) and when it reaches Earth, the path of Earth motion   
   >> becomes almost linear from that moment on.   
   >   
   >   
   > Actually it can crush the Earth into pieces because parts of the Earth   
   > closer to the absent Sun's position will begin moving linearly while the   
   > rest of the Earth still continues on the usual orbit. So a crushing of   
   > Earth into itself will take place for a couple of seconds or so.   
   >   
   >   
      
      
   Huh.. no not a couple of seconds. Just over 40 milliseconds. In the back   
   of my mind I had the sound in the telephone calls to Iran in the old   
   days in my mind. You'd sometimes hear your echo coming back in about a   
   couple of seconds.   
      
   But 40 milliseconds of a huge spherical surface of the change in gravity   
   passing through the Earth could itself be quite significant. One can sit   
   and do a back of the envelope calculation of some of the consequences,   
   looking at, say, only the time at which half of Earth is on orbit around   
   the sun and the other half is moving linearly. I'll leave it to those   
   interested to do that.   
      
   Then after a very rough estimate, do a better analysis as a physicist   
   can, still within the "back of the envelope" scope of the work of   
   course, but showing the time dependent propagation of the result over   
   the entire mass of the earth throughout that 40 milliseconds. This last   
   one, although still a baby problem, is not for the "engineers".   
   "Engineers" like the dead "Jim Pennino" could only finger themselves   
   about it.   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)