From: sylvia@email.invalid   
      
   On 3/07/2019 5:18 pm, Luigi Fortunati wrote:   
   > Sylvia Else ha scritto:   
   >>> So I explicitly ask: is the free fall in a gravitational field inertial   
   >>> or accelerated?   
   >>   
   >> It is inertial, but the only part of your gelatin sphere that is in free   
   >> fall is the part at its centre of gravity.   
   >   
   > The gelatin sphere is ALL in free fall!   
   >   
   > Luigi   
   >   
      
   If the parts of the gelatin sphere were in free fall, then those parts   
   further from the the body creating the gravitational field would take   
   longer to orbit than those parts that are closer. But all the parts of   
   the sphere actually take the same time to orbit, so they cannot all be   
   in free fall.   
      
   The parts that are not at the centre of gravity of the sphere are being   
   subject to forces that make them follow orbits that differ from the ones   
   they'd follow in free fall. Those forces come from the distortion of the   
   gelatin.   
      
   If the required forces become too great for the gelatin to bear, then   
   the sphere will break. This is analogous to the situation of a   
   gravitationally bound object at the Roche limit.   
      
   Sylvia.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)