1. Feb 26, 2007 #1

   Thrice

   

   How does nonlinearity of the gravitational field equations follow from the equivalence principle? I remember hearing a handwaving example of this & I'm interested in more details.

    

   Thrice, Feb 26, 2007
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3. Apr 6, 2008 #2

   MeJennifer

   

   The closer a collection of masses come together the less the sum of their inertial masses becomes. Hence, to maintain equivalence the total gravitational mass has to couple to this increasing "defecit".

    

   MeJennifer, Apr 6, 2008

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