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	Luminiferous aether
		In the late 19th century luminiferous aether ("light-bearing aether") was the term used to describe a medium for the propagation of light.
		Sagnac, E. Bouty, "The Luminiferous Ether Demonstrated by the Effect of the Relative Motion of the Ether in an Interferometer in Uniform Rotation"(in French), Comptes Rendus (Paris) 157 (1913), p.708-710
		Ether and the Theory of Relativity - Albert Einstein's 1920 inaguration address at the University of Leyden (actually delivered on 27 October 1920).
	www.brainyencyclopedia.com /encyclopedia/l/lu/luminiferous_aether.html (3666 words)

	Ether, aether,luminiferous ether,ether drift,ether drag,ether filling space,speed of light,medium of light,James ...
		The story of ether, or aether, is familar to anyone who has studied the history of science and the seminal tale from the heroic age of physics of the Michelson-Morley experiment to establish whether or not light travels through a mysterious medium that fills space -- the ether.
		If the theory of a stationary ether through which the earth moved were correct, then pointing one arm of the apparatus in the direction of the earth's travel through space would produce a displacement of the observed pattern of interference fringes amounting to 0.4 of a fringe width.
		If the ether exists, some of it may be carried along with the earth as it moves through it, in the same way that some air is carried along with an aircraft's wing.
	www.alternativescience.com /ether.htm (2740 words)

	Ether and the Theory of Relativity by Albert Einstein
		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.
		The ether of the general theory of relativity is a medium which is itself devoid of all mechanical and kinematical qualities, but helps to determine mechanical (and electromagnetic) events.
		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.
	www.geocities.com /antonioferrigno/ether.html (2981 words)

	Ether by Reed Carson - BlavatskyNet
		The ether of Blavatsky and the ancients is not the ether of 19th century science.
		These ethers were proposed to resolve different problems facing science and the proposals included different properties, sometimes quite contrasting, that the ether should have.
		What is presented here are a few comments where she separates her ether from the ether of science by declaring the ignorance of science on the true nature of the ether.
	www.blavatsky.net /confirm/ev/ether/ether.htm (2395 words)

	Michelson-Morley Experiment
		In 1878, Michelson had made an excellent measurement of the speed of light at the age of 25, and he thought the detection of motion through the ether might be measurable.
		Michelson proceeded to invent a new instrument with accuracy far exceeding that which had been attained to that date, and that instrument is now universally called the Michelson interferometer.
		The proponents of an "ether" as a propagating medium for the light were not ready to give up the idea, and proposed that the Earth dragged the ether along with it in its orbit, thus accounting for the negative result of the interferometer experiment.
	hyperphysics.phy-astr.gsu.edu /hbase/relativ/mmhist.html (852 words)

	The Luminiferous Ether. (Site not responding. Last check: 2007-11-04)
		In the 19th century most physicists accepted the old idea that all of space is filled with an elusive substance called the "luminiferous ether".
		By that time, Michelson, who believed in the ether, was resigned to the fact that it couldn't be detected, and expected the experiment to fail, as had all of those before.
		Actually, the astronomer James Bradley had earlier (in 1725) done an experiment on stellar aberration that was intended to demonstrate ether drag near the earth, but it showed that starlight coming toward the earth was bent in the opposite direction to that predicted by the ether theory.
	www.lhup.edu /~dsimanek/philosop/ether.htm (633 words)

	On The Nature of the Luminiferous Ether; A Reconciliation with S - Archives - Paradigma Online
		The presence of the ether as the material which made up the heavens was first hypothesised by Greek philosophers about 2300 years ago, mainly in support of their theory of perfect solids; there were five perfect solids, but only four elements to correspond to them.
		The ether was known to have very odd properties; electromagnetic waves are transverse waves (that is, they "wave" in a direction perpendicular to their direction of motion), and transverse waves can only propagate in a solid, not in a liquid or gas.
		The reduction in intensity as the virtual particles were removed is consistent with the theory that the luminiferous ether is the same as the "vacuum structure" mentioned in modern physics theories, and that they are both the medium for propagation of electromagnetic waves.
	www.paradigmaonline.com /content.php3?content=00114 (1498 words)

	Luminiferous aether - Wikipedia, the free encyclopedia
		The luminiferous aether: it was hypothesised that the Earth moves through a "medium" of aether that carries light
		In the late 19th century the luminiferous aether ("light-bearing aether"), or ether, was a substance postulated to be the medium for the propagation of light.
		This effect that is known as Sagnac effect is nowadays used in optical gyroscopes and shows that rotation is similarly "absolute" for light as it is for pendulums.
	en.wikipedia.org /wiki/Luminiferous_aether (3198 words)

	Einstein_Sidelights
		This theory—also called the theory of the 7 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 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, 20 disregarding the causes which condition its state.
		But this ether may not be thought of as endowed with the quality characteristic 24 of ponderable media, as consisting of parts which may be tracked through time.
	www.ibiblio.org /ebooks/Einstein/Sidelights/Einstein_Sidelights-IE.htm (7291 words)

	ether - Encyclopedia.com
		ether or aether, in physics and astronomy, a hypothetical medium for transmitting light and heat (radiation), filling all unoccupied space; it is also called luminiferous ether.
		Ether was held to be invisible, without odor, and of such a nature that it did not interfere with the motions of bodies through space.
		However, all attempts to demonstrate its existence, most notably the Michelson-Morley experiment of 1887, produced negative results and stimulated a vigorous debate among physicists that was not ended until the special theory of relativity, proposed by Albert Einstein in 1905, became accepted.
	www.encyclopedia.com /doc/1E1-ether-phy.html (459 words)

	Ether \| World of Physics
		Ether, sometimes spelled aether, is a hypothetical substance once thought to fill all of empty space and act as a medium for the propagation of electromagnetic waves.
		Ether was also known as the luminiferous ether because of its assumed association with light transmission.
		There was such a strong sentiment that such an ether was at least necessary to define absolute rest that the quest to identify it continued until the start of the twentieth century.
	www.bookrags.com /research/ether-wop (436 words)

	Sympathetic Vibratory Physics - John W. Keely - Various original quotes from renown scientists about the Ether.
		Ether fills the whole space, in so far as it is not occupied by ponderable matter, as a continuous substance; it fully occupies the space between the atoms of ponderable matter.
		It is in eternal motion; and this specific movement of ether (it is immaterial whether we conceive it as vibration, strain, condensation, etc.), in reciprocal action with mass-movement (or gravitation), is the ultimate cause of all phenomena.
		Hertz in his conjectures that a knowledge of the structure of ether should unveil the essence of matter itself, and of its inherent properties, weight and inertia, is treading the path that leads to this knowledge.
	www.svpvril.com /svpweb16.html (2005 words)

	Lord Kelvin \| Wave Theory Of Light
		This represents a particle of the luminiferous ether, moving at the greatest speed when it is at the middle position.
		The luminiferous ether is an elastic solid, for which the nearest analogy I can give you is this jelly which you see, [5] and the nearest analogy to the waves of light is the motion, which you can imagine, of this elastic jelly, with a ball of wood floating in the middle of it.
		We have no knowledge that the luminiferous ether is attracted by gravity; it is sometimes called imponderable because some people vainly imagine that it has no weight; I call it matter with the same kind of rigidity that this elastic jelly has.
	zapatopi.net /kelvin/papers/wave_theory_of_light.html (7688 words)

	Ether - GameWiki (Site not responding. Last check: 2007-11-04)
		By vedic culture this is corroborated in the ether as being the sky which is also called akasha, the element that represents the first one of creation basic to the later ones in evolution of fire, water, earth and air.
		The mind, thus seen, springs from the ether in our being identified with the cyclic of the timing of our material actions and finds at the other hand its peace again with the meditative expansion of us souls detaching on the primordial ether of spacetime.
		His idea of the ether as being space with characteristics of gravity, is relativistic as opposed to that of H. Lorentz who departed more from an absolute concept of time with the ether.
	www.theorderoftime.com /game/wiki/index.php/Ether (953 words)

	Luminiferous aether - Wikipedia, the free encyclopedia
		In the late 19th century the luminiferous aether ("light-bearing aether"), or ether, was a substance postulated to be the medium for the propagation of light.
		But by this time, people were increasingly associating the term "aether theory" with discredited and superceded theories predating special relativity, and modern theorists now tend to prefer talking about their work in terms of the expected properties of "the metric", "space" or "vacuum", rather than those of "the aether" or "the medium".
		Meanwhile, from his 1913 experiment with an interferometer in uniform rotation, Georges Sagnac concluded that "in the ambient space, light is propagated with a velocity V0, independent of the movement as a whole of the luminous source O and the optical system.
	alcor.concordia.ca /~vpetkov/courses/Luminiferous_aether.html (3987 words)

	Karim Khaidarov - The New Lights (The Luminiferous Ether)
		At presence within ether only a few vacancies, there is possible motion due 6 axises (12 directions) of dodecahedron, but when the concentration of vacancies are increasing, shift deforming of the corpuscular ether become possible.
		Such impoverished by vacancies ether exists in particular conditions only, for instance, when movement of substances or shift and rotation waves are proceed with velocities, close to velocitiy of light, as it is seen from (1).
		However they form the field of phase ether that is to say provide the liberty of moving the corpuscular ether, as well as bring a fall of light corpuscular velocity trough increasing of their density.
	bourabai.narod.ru /lights.htm (2802 words)

	Nature's Finer Forces - Part 1
		The luminiferous ether is the subtle Tejas Tattva, and not the Âkâsha.
		The vibrations of Âkâsha, the sonoriferous ether, constitute sound; and it is quite necessary to recognize the distinctive character of this form of motion.
		The darkness of the room is thus the consequence, notwithstanding the presence therein of the luminiferous ether.
	www.hermetics.org /prasad.html (6380 words)

	Transported Shiver of Bodies: Weighing the Victorian Ether
		One thing we are sure of, and that is the reality and substantiality of the luminiferous ether.' Of course, it might be said that this was a kind of defiant, dying flare of the ether hypothesis, as theorists and experimenters tried desperately to respond to the Michelson-Morley challenge.
		If the ether was far from down and out in 1905, it is also the case that the beginning of speculation about the ether is to be found long before the beginning of the nineteenth century, and this history exerts a significant pull on nineteenth-century thought.
		One of the most important differences between the ether casually evoked by poets during the period and that ether which formed the subject of science was that the physical ether was subject to and itself transmitted force, stress and strain.
	www.bbk.ac.uk /english/skc/ether (7288 words)

	Alice Bailey - The Soul and its Mechanism - V - Oriental Teaching as to the Soul, Ether and Energy (Site not responding. Last check: 2007-11-04)
		From the tangiferous ether, the luminiferous ether, and from this the gustiferous ether; thence was the birth of the odoriferous ether.
		A resemblance between the luminiferous ether of the ancient Indian scriptures, and the light waves of the modern scientist is obvious.
		It is said, however, that this Ether is not 'matter,' but differs profoundly from it, and that it is only our infirmity of knowledge which obliges us, in our attempted description of it, to borrow comparisons from 'matter' in its ordinary physical sense, which alone is known by our senses.
	laluni.helloyou.ws /netnews/bk/soul/soul1027.html (1003 words)

	Traveling through space (Site not responding. Last check: 2007-11-04)
		Luminiferous Ether is a massless vapor that scientists once believed filled the universe as the medium transmission of light and heat.
		No evidence of an ether was observed -- the speed of light was observed to be constant for all directions and speeds of motion of the laboratory (taking advantage of the Earth's rotation and revolution around the sun).
		This lack of evidence for ether and the validity of Maxwell's equations for describing electromagnetic waves in all reference frames led Einstein to propose in 1905** the special theory of relativity, which has profoundly changed the way we look at space and time and all of physics ever since.
	van.hep.uiuc.edu /van/qa/section/Light_and_Sound/EM_Waves/20020422044416.htm (650 words)

	Aether and Relativity - Einstein (1920) - Theories of the Aether
		Thus the physicists were bound to arrive at the theory of the ``quas-irigid'' 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.
		But this ether may not be thought of as endowed with the quality characteristic of ponderable inedia, as consisting of parts which may be tracked through time.
	www.mountainman.com.au /aether_0.html (3035 words)

	The Ether Gauge Theory (Site not responding. Last check: 2007-11-04)
		Ether Gauge Physics, the Ether Gauge Theory (EGT), is often referred to as a Modified Lorentz Ether Theory (MLET) inasmuch as it may be viewed as a modified and much extended version of H. Lorentz's ether based concepts.
		Pauli [2] says the ether had to be given up "...not only because it turned out to be unobservable, but because it became superfluous as an element of mathematical formalism..." But it has always been rather meaningless to talk of light as a transverse wave without having something to do the waving.
		The ether external to the particle will have an increased density that will be distributed approximately inversely proportional to the distance from the center of the particle.
	www.egtphysics.net /Ron1/ronEGT.htm (9156 words)

	Michelson-Morley experiment Summary
		Ether theories were modified to account for this null-result, but no fully satisfactory solution presented itself until the introduction of Albert Einstein's special theory of relativity in 1905.
		Because the ether wind affects each beam by different amounts there is a difference in the times it takes the beams to travel along their respective paths.
		They were forced to conclude that their experiment had shown that the hypothesis of a stationary, luminiferous ether was not correct.
	www.bookrags.com /Michelson-Morley_experiment (5899 words)

	[No title] (Site not responding. Last check: 2007-11-04)
		Michelson apparently did not take the apparent non drift of a putative ether to be better explained by a theory holding that light travels at the same speed in all inertial frames; a feature of Einstein's theory.
		theory of aberration which assumes the ether at the earth's survace to be at rest with regard to the latter (earth) and only requires that the relative velocity have a potential but Lorentz shows that these conditions are incompatible.
		They established that earth's motion 'in the ether' did not appear to affect the velocity of light in their interferometry experiments of increasing sensitivity.
	web.syr.edu /~ddawson/phy312/body (1019 words)

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