Tom Roberts wrote on Thu, 17 Apr 2008 15:10:34 +0000:

> Juan R. González-Álvarez wrote:
>> [...]
> 
> This is clearly going nowhere -- all you have are insults and evasions.
> Don't expect me to respond until and unless you say something
> substantive.

Tom: one cannot measure gravitational forces

Juan: could you write the expression for the gravitational force?

Tom: No, but i can insult you crackpot.

Crackpot: If one person makes strong claims about electromagnetic forces
          we wait that person can write the expression for the force at
          least. You did very bold statements about gravitational forces
          Tom, can you write the expression for the gravitational force?

Tom: No, but i can lye writing the right hand side of the geodesic
     equation of motion.

Crackpot: But that is a geometric equation. Multiplying it by m does not
          transform into a physical force. Can you write the expression
          for the force that you said could not be measured?

Tom: No, but i can be lying about this. Gravitational forces cannot be
     measured because they are coordinate independent.

Crackpot: But that is your mistake Tom. You are taking the equation of
          motion from GR, which is coordinate dependent, and misapplying
          it to a well-defined problem. The expression for the force in a
          non-geometrical formulation is coordinate independent.
          Astronomers are promoting a improved version of Stevinus-
          Grotius-Galileo experiment, would detect deviations df/f of
          order 10^-13 and would provide another independent
          falsification of geometric GR.

Tom: No, no, no, no, i do not trust you. You cited a paper on
     instantaneous interactions I read and it says nothing about that. I
     do not trust you now.

Crackpot: The authors make clear in the title, in the abstract, in the
          body, and in the conclusions of the paper that EM interactions
          are not retarded by c but contain an instantaneous component.

          Necessity of simultaneous co-existence of instantaneous and
          retarded interactions in classical electrodynamics. 1999: Int.
          J. of Mod. Phys. A 14(24), 3789. Chubykalo, Andrew E;
          Vlaev, Stoyan J.

          For instance in the conclusions they say: "The explicit
          dependence of E and B on t mean that, contrary to the
          implicit time dependence, there is not a retarded time for
          electromagnetic perturbation to reach the point of
          observation."

          Your 'criticism' was they would compute instantaneous
          interactions by taking the LW potentials at present time t.
          This nonsense, repeat NONSENSE, deserves a "Yours is a
          statement of profound ignorance in all of its parts"

          I cannot explain you more advanced stuff -neither gravitational
          forces- if you show that misunderstanding of an elementary
          paper on a linear vector theory: electrodynamics.

Tom: all you have are insults and evasions. You are acting as a crackpot.

Crackpot: Tom you are doing a fine job at educating people about
          elementary questions on relativity. Keep it up! But avoid to
          reply to advanced research questions, specially in those topics
          you NEVER studied or did any contribution.

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