kris wrote:Hi,
[...]
They claim gravity (waves) move at the speed of light. That means, the way I see it, that it takes about 8 minutes till earth gets the information for the position of the sun. Going towards the outer planets, this effect becomes even worse. Neptune would get the information only after 4 hours (i think).
Now, in a stationary system, this wouldn't be that big of a problem (i think - again

) but since the sun is also moving around the galactic core AND our galaxy is speeding around with tremendous speed, shouldn't the retardation of the 'gravity information' throw the planets, starting with the outer planets first, throw the planets elliptically out of orbit?
This is of course a little thought experiment I had, assuming that Newtonian physics are the only physics working in this system.
Thornhill does seem to be in agreement on the problem, and endeavours to shed light on the source and function of gravitation, see articles below.
(Newton’s Electric Clockwork Solar System)
http://www.holoscience.com/news.php?article=q1q6sz2s
(Electric Gravity in an Electric Universe)
http://www.holoscience.com/news.php?article=89xdcmfs
‘Instantaneous’ gravity
A significant fact, usually overlooked, is that Newton's law of gravity does not involve time. This raises problems for any conventional application of electromagnetic theory to the gravitational force between two bodies in space, since electromagnetic signals are restricted to the speed of light. Gravity must act instantly for the planets to orbit the Sun in a stable fashion. If the Earth were attracted to where the Sun appears in the sky, it would be orbiting a largely empty space because the Sun moves on in the 8.3 minutes it takes for sunlight to reach the Earth. If gravity operated at the speed of light all planets would experience a torque that would sling them out of the solar system in a few thousand years. Clearly, that doesn't happen. This supports the view that the electric force operates at a near infinite speed on our cosmic scale, as it must inside the electron.[23] It is a significant simplification of all of the tortuous theorizing that has gone into the nature of gravity and mass. Einstein’s postulates are wrong. Matter has no effect on empty space. Space is three-dimensional—something our senses tell us. There is a universal clock so time travel and variable aging is impossible—something that commonsense has always told us. But most important—the universe is connected and coherent.
The real nature of light
However, it leaves the question of what the speed of light means. This is where I part company with Sansbury and others who explain it in terms of a delayed response to an instantaneous signal. In my view, the crucial difference between the near-infinite speed of the electric force and the relative dawdle of light on any cosmic scale is that the electric force is
longitudinal while light is an oscillating
transverse signal moving slowly through a medium.
(A Real 'Theory of Everything')
http://www.holoscience.com/news.php?article=gdaqg8df
We have direct evidence of the superluminal action of the electric force, given that gravity is a longitudinal electric force. Indeed, Newton's celebrated equation requires that gravity act instantly on the scale of the solar system. It has been calculated that gravity must operate at a speed of at least 2x10^10 times the speed of light, otherwise closely orbiting stars would experience a torque that would sling them apart in mere hundreds of years. Similarly, the Earth responds to the gravitational pull of the Sun where it is at the moment, not where the Sun was 8 minutes ago. If this were not so, the Earth and all other planets in the solar system would be slung into deep space within a few thousand years. Gravity is therefore an electrical property of matter, not a geometrical property of space.
(Antigravity?)
http://www.holoscience.com/news/antigravity.html
One is also tempted to point out a snippet from Stephen J. Crothers' recent Thunderblog on gravitational waves:
(Einstein's Elusive Gravitational Waves)
http://www.thunderbolts.info/thunderblo ... 07_sjc.htm
Crothers wrote:Einstein's gravitational waves do not have a unique speed of propagation. The speed of the alleged waves is coordinate dependent. A different set of coordinates yields a different speed of propagation. Einstein and his followers deliberately choose a set of coordinates that gives the speed of propagation as that of light in vacuum. There is no
a priori reason why this particular set of coordinates is better than any other. The sole reason for their choice is to obtain the desired result. Such a method has no validity in science. Here is what the late British scientist Arthur S. Eddington pointed out in his book,
The mathematical theory of relativity, Cambridge University Press, Cambridge, 2nd edition, 1960:
Eddington wrote:The statement that in the relativity theory gravitational waves are propagated with the speed of light has, I believe, been based entirely upon the foregoing investigation; but it will be seen that it is only true in a very conventional sense. If coordinates are chosen so as to satisfy a certain condition which has no very clear geometrical importance, the speed is that of light; if the coordinates are slightly different the speed is altogether different from that of light. The result stands or falls by the choice of coordinates and, so far as can be judged, the coordinates here used were purposely introduced in order to obtain the simplification which results from representing the propagation as occurring with the speed of light. The argument thus follows a vicious circle.
In other words, there is no specific observational evidence that the speed of gravity is the same as that of light in a vacuum. That was simply an introduced assumption based on nothing more than, shall we say, wishful thinking such that the maths should be simplified. That it has never been 'disproven' does not mean that it has ever been 'proven' either. It simply stands as an historical tradition...
A point to ponder.
Best,
~Michael Gmirkin