Re: New Explanation of Hydrogen's Fine Structure

On May 28, 7:05 pm, "Steve Bell" <sb...@xxxxxxxxxxxx> wrote:
"Ken S. Tucker" <dynam...@xxxxxxxxxxxx> wrote in messagenews:bdf842d6-d965-49c0-93a7-f6051d6d9ad1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> On May 28, 12:22 pm, "Steve Bell" <sb...@xxxxxxxxxxxx> wrote:
"Ken S. Tucker" <dynam...@xxxxxxxxxxxx> wrote in
....
Steve, please provide the pg#, it's a fat book!
Ken

See p. 70, Section 2 entitled "Gravitational Forces," where Weinberg in
just
a page or two, derives the geodesic equation of GR. For those not having
the
book, Weinberg starts off the section with the sentence: "Consider a
particle moving freely under the influence of purely gravitational
forces."
He would not have said that, I presume, unless he thought these
gravitational forces actually exist.
Steve

Well Weinberg's "Grav&Cosmo" is like a legal
document - one step up from MTW. You need to
see his conditions set forth on pg.67.
That chapter is a bit sloppy, but it has the
good intentions of interfacing Newton to
General Covariance at pg 91, as he says on
pg 67.
That chapter is not intended to be rigorous,
it's to move the dough-heads from Newton to
GR on pg.151, as he explains on that pg.

"Incidentally" I made a contribution to his
text on page 84.
Regards
Ken S. Tucker

I'm not sure I understand your meaning here. Are you saying that Weinberg
does not believe in gravitational forces?

Yes.

Could you point to where in his
book he directly states that? I've looked at the pages you've referred to,
and I see no implication of that, just the opposite on one of them. On p.
67, he uses the words "gravitational forces." On pps. 91 and 151, he doesn't
use the word the "force" anywhere.

As it should be, GR doesn't have force.
Ken

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