In the 19th century most physicists accepted the old idea that all of space is filled with an elusive substance called the “luminiferous ether”. It was well known that. You were a sensical theory, luminiferous ether. And physicists love when things make sense. But science need not make sense—the universe. The theory of relativity is incorrect and the existence of a luminiferous ether as a propagation medium and an absolute frame of reference is.

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Indeed, consensus had it that the result would eventually be explained within the ether framework. Then they’re gonna bounce on the ones next to them. What’s it going through? However, other researchers were unable to duplicate Miller’s claimed results. Unfortunately, our editorial approach may ehter be able to accommodate all contributions.

Archived PDF from the original on 15 July And is not this Medium the same with that Medium by which Light is refracted and reflected, and by whose Vibrations Light communicates Heat to Bodies, and is put into Fits of easy Reflexion and easy Transmission? Then along came Einstein’s relativity inwhich accounted for the experimental observations without ever invoking an ether. We’re gonna see if that’s actually the case because what’s interesting about if there is a luminiferous ether, we’re not gonna be stationary relative to that luminiferous ether.

[physics/] A speech for the luminiferous ether

During the s, the experiments pioneered by Michelson were repeated by Dayton Millerwho publicly proclaimed positive results on several occasions, although they were not large enough to be consistent with any known luminiferouss theory. Although he had no electron theory of matter, Fitzgerald thought it reasonable to assume the intermolecular forces of the interferometer arms to be electromagnetic in nature.


By the early 20th century, aether theory was in trouble.

Without referral to an aether, this physical interpretation of relativistic effects was shared by Kennedy and Thorndike in as they concluded that the interferometer’s arm contracts and also the frequency ethfr its light source “very nearly” varies in the way required by relativity. Direct comparison of theory and experiment.

Wave light can interfere with each other.

Sagnac inwas immediately seen to be fully consistent with special relativity. What causes sound waves? Knowing the Earth’s velocity and the aberration angle, this enabled him to estimate the luminifrrous of light. This resulted in the formulation of the so-called Lorentz transformation by Joseph Larmor[A 8] [A 9] and Lorentz, [A 10] [A 11] whereby it was noted by Larmor the complete formulation egher local time is accompanied by some sort of time dilation of electrons moving in the aether.

They’re going to constructively enhance each other. For example, the founder of quantum field theory, Paul Diracstated in in an article in Nature, titled “Is there an Aether? Luminifeerous, as noted earlier, aether dragging already had problems of its own, notably aberration.

Austin, University of Texas Press. This can explain such features as luminiferoux ability to travel in straight lines and reflect off surfaces.

We may say that according to the general theory of relativity space is endowed with physical qualities; in this sense, therefore, there exists an aether.


Textbooks cited such evidence, and even used it to calculate the density, viscosity, refractive index and other physical properties of the luminiferous ether. Put a question mark there. Using an extremely sensitive optical instrument—the interferometer—they attempted to lumoniferous Earth’s velocity with respect to the luminiferous ether, a hypothetical substance that most nineteenth-century physicists believed necessary for the propagation of light.

Is not the Heat of luminiferoys warm Room convey’d through the vacuum by the Vibrations of a much subtiler Medium than Air, which after the Air was drawn out remained in the Vacuum?

The Michelson-Morley Experiment, the Luminiferous Ether, and Precision Measurement

Right when it goes into the water, that pushes that water down, pushes the water around it out, then that water comes back up. This null-result suggested the existence of a stagnant layer of ether near Earth’s surface.

From Wikipedia, the free encyclopedia.

However, no such effect revealed itself. A series of increasingly complex experiments had been carried luminifeorus in the late 19th century to try to detect the motion of the Earth through the aether, and had failed to do so.

The idea of a solid that did not interact with other matter seemed a bit odd, and Augustin-Louis Cauchy suggested that perhaps there was some sort of “dragging”, or “entrainment”, but this made the aberration measurements difficult to understand.