It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
So you are again claiming that the space between the Sun and the Earth for instance has no underlying structure. Again, not anyone anywhere agrees with you.
This is more proof that you indeed need a history lesson on ether, which Einstein provided, though I have doubts you will understand what he said since your willingness to try to actually learn or discuss anything seems to be about zero. What he said is there is an ether, but it's not a medium, yet you keep trying to posit a medium.
originally posted by: AntonGonist
This is just showing you that the idea is widespread and even supported by Einstein himself.
Stupid Einstein for believing in a stupid "magical field", as you put it.
There's not one mathematical equation in Einstein's 1920 talk about ether.
originally posted by: puzzlesphere
a reply to: AntonGonist
The idea may be widespread, and Einstein may even have refereed to an "aether" colloquially in later years, but his math never definitively showed an aether from what people are saying, (unless you consider said fields to be the aether itself... though the maths doesn't show that either, from my understanding... though I can't verify that myself as I can't read the math, so I have to take it on the words of more learned minds in these areas... I can and do keep asking questions though).
When in the first half of the nineteenth century the far-reaching similarity was revealed which subsists between the properties of light and those of elastic waves in ponderable bodies, the ether hypothesis found fresh support. It appeared beyond question that light must be interpreted as a vibratory process in an elastic, inert medium filling up universal space. It also seemed to be a necessary consequence of the fact that light is capable of polarisation that this medium, the ether, must be of the nature of a solid body, because transverse waves are not possible in a fluid, but only in a solid. Thus the physicists were bound to arrive at the theory of the "quasi-rigid" luminiferous ether, the parts of which can carry out no movements relatively to one another except the small movements of deformation which correspond to light-waves.
This theory - also called the theory of the stationary luminiferous ether - moreover found a strong support in an experiment which is also of fundamental importance in the special theory of relativity, the experiment of Fizeau, from which one was obliged to infer that the luminiferous ether does not take part in the movements of bodies. The phenomenon of aberration also favoured the theory of the quasi-rigid ether.
neither Maxwell nor his followers succeeded in elaborating a mechanical model for the ether which might furnish a satisfactory mechanical interpretation of Maxwell's laws of the electro-magnetic field. The laws were clear and simple, the mechanical interpretations clumsy and contradictory. Almost imperceptibly the theoretical physicists adapted themselves to a situation which, from the standpoint of their mechanical programme, was very depressing.
So all the problems with the mechanical nature of the ether were removed by Lorentz and the only mechanical property which remained was immobility.
Such was the state of things when H A Lorentz entered upon the scene. He brought theory into harmony with experience by means of a wonderful simplification of theoretical principles. He achieved this, the most important advance in the theory of electricity since Maxwell, by taking from ether its mechanical, and from matter its electromagnetic qualities. As in empty space, so too in the interior of material bodies, the ether, and not matter viewed atomistically, was exclusively the seat of electromagnetic fields. According to Lorentz the elementary particles of matter alone are capable of carrying out movements; their electromagnetic activity is entirely confined to the carrying of electric charges. Thus Lorentz succeeded in reducing all electromagnetic happenings to Maxwell's equations for free space.
As to the mechanical nature of the Lorentzian ether, it may be said of it, in a somewhat playful spirit, that immobility is the only mechanical property of which it has not been deprived by H A Lorentz.
This last point is the topic of some debate and some mainstream scientists still question whether maybe Lorentz was right and special relativity doesn't really take away the immobility. So far nobody has devised an experiment to distinguish between relativity and the Lorentz ether theory (LET) so either could be true based on experiment, but see my previous post with the link to comments by Matt Strassler on why most physicists see the additional postulates in LET as unnecessarily complicated, when relativity explains things more simply, so the preference for the latter could be said to be based on Occam's razor.
It may be added that the whole change in the conception of the ether which the special theory of relativity brought about, consisted in taking away from the ether its last mechanical quality, namely, its immobility. How this is to be understood will forthwith be expounded.
The next position which it was possible to take up in face of this state of things appeared to be the following. The ether does not exist at all...
Certainly, from the standpoint of the special theory of relativity, the ether hypothesis appears at first to be an empty hypothesis. In the equations of the electromagnetic field there occur, in addition to the densities of the electric charge, only the intensities of the field. The career of electromagnetic processes in vacuo appears to be completely determined by these equations, uninfluenced by other physical quantities.
The electromagnetic fields appear as ultimate, irreducible realities, and at first it seems superfluous to postulate a homogeneous, isotropic ether-medium, and to envisage electromagnetic fields as states of this medium.
But on the other hand there is a weighty argument to be adduced in favour of the ether hypothesis. To deny the ether is ultimately to assume that empty space has no physical qualities whatever. The fundamental facts of mechanics do not harmonize with this view. For the mechanical behaviour of a corporeal system hovering freely in empty space depends not only on relative positions (distances) and relative velocities, but also on its state of rotation, which physically may be taken as a characteristic not appertaining to the system in itself.
What is fundamentally new in the ether of the general theory of relativity as opposed to the ether of Lorentz consists in this, that the state of the former is at every place determined by connections with the matter and the state of the ether in neighbouring places, which are amenable to law in the form of differential equations; whereas the state of the Lorentzian ether in the absence of electromagnetic fields is conditioned by nothing outside itself, and is everywhere the same. The ether of the general theory of relativity is transmuted conceptually into the ether of Lorentz if we substitute constants for the functions of space which describe the former, disregarding the causes which condition its state. Thus we may also say, I think, that the ether of the general theory of relativity is the outcome of the Lorentzian ether, through relativation.
Recapitulating, we may say that according to the general theory of relativity space is endowed with physical qualities; in this sense, therefore, there exists an ether. According to the general theory of relativity space without ether is unthinkable; for in such space there not only would be no propagation of light, but also no possibility of existence for standards of space and time (measuring-rods and clocks), nor therefore any space-time intervals in the physical sense.
So the ether Einstein talks about is NOT a medium, since it "may not be thought of as endowed with the quality characteristic of ponderable media", rather it is the concept we now call space-time he refers to as ether, an ether which is NOT a medium.
But this ether may not be thought of as endowed with the quality characteristic of ponderable media, as consisting of parts which may be tracked through time. The idea of motion may not be applied to it.
Theoretical physicist Matt Strassler explains why he and most physicists think that idea doesn't make sense:
originally posted by: More1ThanAny1
But what if the medium wasn't fixed in space? What if its fixed to something you don't understand?
What if it was fixed to the observer?
If you had explained that on page 1 we could have saved 20 pages, lol, just kidding about saving 20 pages, but yes that's it in a nutshell.
originally posted by: atx84
your biggest hangup is this medium bs. a mechanical wave is defined as needing a medium to pass through, where as a em wave is defined as not needing one because it does not need anything other than itself to carry
Is there any desire to understand though?
I am at a loss as to what is so hard to understand...
originally posted by: Arbitrageur
Is there any desire to understand though?
I am at a loss as to what is so hard to understand...
If you had explained that on page 1 we could have saved 20 pages, lol, just kidding about saving 20 pages, but yes that's it in a nutshell.
it does not need anything other than itself to carry
rather it is the concept we now call space-time he refers to as ether
which is NOT a medium.
Quote where I ever posted such a thing.
originally posted by: AntonGonist
a reply to: neutronflux
Quote where I ever posted such a thing.
So then you agree there is in fact an underlying stucture. What made you change your mind.
originally posted by: neutronflux
a reply to: AntonGonist
According to science, and other posters, there is a universal field of some sorts, it seems to be electrical in nature, it is a medium that propagates EM radiation. What is the difference with the undesirable Aether?
Yes. Things have to be in the “fabric” of this “reality” to exist in this “reality”.
Again. I can transmit a signal from the earth to the moon with no requirements for a “medium” with electromagnetic radiation because electromagnetic radiation is self propagating and requires no “medium”. But the electromagnetic radiation must be “real” to exist.
originally posted by: AntonGonist
a reply to: neutronflux
Quote where I ever posted such a thing.
So then you agree there is in fact an underlying stucture. What made you change your mind.