Observations/Interferometry: Difference between revisions
cleaning up Dayton miller
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* They designed special equipment made of aluminum and Brass so that it could negate against magnetic effects and evaluated the way the Mercury interacted with the base of the apparatus. They tried bases of wood, concrete, different metals, and basically what they were testing was that the distribution of weight on the Mercury and how that would affect the spin and friction.
* Miller would test with different light sources so they were he was testing to see if other light sources would interfere with with The Fringe patterns. He tested in direct sunlight and artificial light to check for different wavelengths to see how that would interfere with it.
* Miller performed temperature evaluation using artificial heating to heat and cool the apparatus just to see how actual length contraction and expansion would affect it. After Miller determined that temperature had some effect, he did thermal installation to further protect against from thermal heating in nature, by assessing low-level thermal effects from having his assistant take recordings and measurements standing next to the device at varying places to see if just the body heat of another person in the room would affect it.
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▲* he was very thorough in evaluating environmental temperature effects, he constructing special housing to shelter the [[Tech/Interferometer|interferometer]], he built a house with walls, a canvas roof, windows, and Shielded against the all the environmental effects, because basically what he found was that the more in the open, you could have the device, but shielded to protect against the factors that would cause variation in the fringe shift. As much as possible, having it at altitude and in conditions in the open, you will get the consistent fringe shift readings. In modern times what they do is the place the [[Tech/Interferometer|interferometer]] in a basement of a building.
The original Michelson-Morley device was in a basement and even that still detected a fringe shift pattern albeit, slightly less, it still has the potential to to detect it. So when you want to get the consistent measurements in altitude, and having it in the open, it is definitely the way to do it. So observing periodic effects, Miller noted that he never observed any periodic effects expressing themselves according to the Civil time coordinates, indicating the thermal effects radiating from the specific walls related to the solar heating were not influences this apparatus
====Miller's Data====
[[File:Dayton Miller graphs 1.png|200px|right|thumb|Figure 1]]
Periodicity of the of global Æther drift from Dayton Miller's Mount Wilson Æther drift experiment 1925-1926. The top graft above, plus the data from four separate months or epochs measured at different times of the year organized by sidereal time showing a definite periodic curve.
This demonstrates that the detected axis in the Periodicity of The Æther drift is the same or different times of that year, so it can only be seen when the data is viewed through a cosmological sidereal coordinate system from Miller 1928, page 362. These data curves are organized along with Azimuth means that were later recomputed with Miller's publication as given in (Figure 1 top Graph).
On average velocity and Azimuth of global Æther drift, from Dayton Miller's Mount Wilson Æther drift experiments 1925-1926. (Figure 1 top Graph) average variations is observed in The observed magnitude of Æther Drift from all four epochs of measurement. Maximum velocities occurs at about five hours sidereal time, and minimum velocity occurs at about 17 hours sidereal time. While Miller's 1933 paper assumed the Earth was pushing through the Æther and moving towards Dorado near the southern pole of the plane of the ecliptic, the movement and direction of The Æther drift past the [[Tech/Interferometer|interferometer]] was exactly opposite to this toward Draco, near the North Pole, and the plane of the ecliptic 17 hours right Ascension declination of plus 68 degrees.
It is important from the standpoint of his working the theory to clarify the concepts of the net motion of the earth versus the direction of The Æther drift, however if the Æther itself is in motion acting as a cosmic prime mover the direction of The Æther drift in the net motion of the Earth would be identical, although at different velocities.
[[File:Dayton Miller graphs 2.png|200px|right|thumb|Figure 2]]
The bottom graph average variation and observed Azimuth readings according to sidereal time this graph uses the
Amazingly the independent averages of the four epochs provided by Miller (February equals minus 10 degrees west of North, April equals plus 40 degrees east, August equals plus 10 degrees east, and in September equals plus 55 degrees east), yielded together results in a mean displacement of 23.75 degrees east from North (Figure 2 bottom graph). This is close to the Earth's axial tilt of 23.5 degrees, and can hardly be a coincidence.
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Misrepresentation of the experimental results, Shanklin's falsely claimed that the trials of Mickelson-Morley experiments, except those carried out by Miller, yielded "null results". This misrepresentation ignores the slight positive result obtained by several other [[Tech/Interferometer|interferometer]] experiments, suggesting as a deliberate bias against Miller's findings. Lack of comprehensive evaluation, Shanklin's paper gave the impression of a comprehensive review of Miller's [[Tech/Interferometer|interferometer]] observations, but was limited in scope.
The team focused on searching for random ears or statistical fluctuations that Miller's data, and looking for selected data sets that demonstrate temperature artifacts. This limited approach undermines The credibility of their critiques
In Shanklin's paper it even says that he doesn't have enough of the temperature data to make these claims but they basically just hand wave/dismiss everything and chalk it up to temperature gradients and you know as if Miller wasn't aware of any of that, which he you know Miller obviously was.
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Miller addressed at many times and even called Einstein out in a paper (need citation). There's a long history of you know people trying to dunk on Miller and while he was alive he couldn't do it, so after he died that's when the that's when the Sharks came in and uh picked at the bones of his of his work.
David's Miller work on The Æther drift which was conducted with precision and diligence has been disregarded and omitted from The History of Science, despite Miller's response
The Shanklin team and their attempt to discredit Miller selectively analyzed his data and failed to systematically evaluate his most important experiments, while the Shanklin conclusion were negative, they were they inadvertently confirmed Miller's work of a periodic effect in the [[Tech/Interferometer|interferometer]] data, which was not due to random errors or mechanical effects.
The Shanklin team focused on the temperature artifacts but did not thoroughly analyze Miller's most crucial Mount Wilson data. The large issue of the periodic effects of the data and the potential impact of the temperature were not adequately addressed by shanklin's team. A Team possibly influenced by Einstein,
See the video presentation "History of Laser Interferometry: Dayton Miller" on YouTube @ Space Audits <ref name=LaserInterferometryDaytonMiller></ref>
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