From: noelturntive@live.co.uk
On Thursday, 25 May 2006 at 21:00:38 UTC+1, carlip...@physics.ucdavis.edu
wrote:
> Blaze Labs wrote:
>
> > Hello guys,
> > I would like to know the main reasons why the push gravity concept is
> > not considered as a viable concept by mainstream science.
>
> There are a few generic objections, along with particular problems with
> particular models. The main generic objections I know of are
> 1. Drag: As Feynman pointed out in the Feynman Lectures, anything
> that's capable of "pushing" will also create drag on a moving object.
> There are very strong observational limits on such drag, in the
> Solar System and in binary pulsar systems.
It's hard to defend a EMR push gravity model if critics \_give_/ push
gravity effects that the model itself does not predict. Why exactly
would push gravity as EMR give \_drag_/ to an orbitting satelitte?
Notice any force felt in push gravity is only observed if another mass
throws a *shadow* on the first body. Otherwise the object floating in
space is always subject to an equal `push' from all directions of the
universe. Regardless of its motion relative to any other object.
Steve and others assume push gravity as EMR would create drag. But no
explanation as to how this drag is created. For instance an object in a
push gravity universe always has uniform EMR pressure coming in from all
sides. (Except of course if it's experiencing a shadow from another
nearby mass.) This is the basics of the model. In the same way that an
object will continue in an inertial path unless acted upon by an
external force. Which can only be another objects gravitational shadow.
So an object travelling through the solar system that from our
perspective is moving...is actually at rest in its own frame. With an
equal push of universal EMR push gravity from all directions. And the
solar system is moving.
This is possible because in a push EMR model a BB is not neccesary. And
being a novel gravitational model, GR does not apply. Which means any
atom in an infinite universe is always subject to an even push from all
directions. Any point in a infinite universe, ALWAYS has an equal and
infinite amount of universe in all directions. Regardless of its motion
relative to any other atom.
> You immediately run into trouble with the principle of equivalence,
> for one thing. Electromagnetic waves don't interact with other
> electromagnetic waves (except by truly tiny quantum effects); but
> gravity bends light. Nor do electromagnetic waves interact with
> internal energy, not with neutrinos; but these *are* affected by
> gravity. You also run into grave problems with aberration (see above),
> and very probably with drag. You would *further* have to explain why
> this high frequency radiation is not absorbed by the Earth enough to
> lead to gravitational screening of the type ruled out by experiment.
This is not a problem in a EMR push model. The push model assumes much
greater energies than those observed exist. And generally they pass
through all mass, like the earth. But a small amount interacts with each
atom. We know this happens because we can observe small amounts of
visible light reflects off atoms. And \_pushes_/ the atom. As in solar
sails. This is evidence that EMR does interact with atoms and can give
observed push. The very basics of a push model are confirmed.
[Moderator's note: The above is an amalgamation of two overlapping
posts. I have also removed superfluous quoted text and reformatted it
somewhat. Also, note that Stever Carlip's original reply addressed
several arguments against such theories; at the very least, one would
have to refute them all, not just the ones mentioned above. -P.H.]
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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