[Nesti (Mark)]

Originally Posted by xelasnave

I like to think that (and have said it before) that it is the "push" or the flow of stuff that "bends" the space time grid constructed by GR

alex

Alex,

Where did you get the "Push" nature of GR, rather than 'attractive' nature of GR from???

You're not talking about the 'Pressure' are you? ie, the Pressure of the Energy Momentum Density?

That can easily be confused with a type of 'Push', as the Energy Momentum IS the flow, and in a direct/indirect way, does creates the Einstein Tensor values, which in essence IS the curvature...but there is no real pushing involved.

I went hunting for it...took me half an hour, phew!
Discussed [in my bible] at 1:14:00 and runs for about 4-5min
http://www.youtube.com/watch?v=VCRG1uzc9xg

Cheers
Mark