> ok so I should have finished reading the thread before i replied, but,
to
> measure how far a gravitational feild propagates, wouldnt you have to
create
> a new field and measure how fast it propagated?

No, although that would work even though nobody knows how to create a
"new" field.

> wouldnt all the existing
> fields have already have extended as far as they are going to reach?

No.

> or do
> they actually propagate forever in a continually reducing strength?

Yes.

> even if
> it does, how do you measure how fast something is travelling that is
already
> so far away from you and you cant travel that quick?

This was explained in the article and here yesterday.  See the archives.
Briefly, an accellerating mass produces an assymmetric field due to the
propagation lag.  This assymmetry can be (was) measured.


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