The misunderstood Sagnac effect

2021 ◽  
Vol 34 (4) ◽  
pp. 480-485
Author(s):  
John-Erik Persson

The Sagnac effect of first order (in one-way light) is shown to explain the aberration observed in the very long base interferometry tests. This fact is also consistent with Sagnac’s results and with the observed stellar aberration. The Sagnac effect of second order (in two-way light) is shown to be real, but not observable, in the experiments that were done by Michelson and Morley. However, it is also shown that the same second order effect is observable in the Pioneer anomaly. The Doppler effect of second order is also demonstrated to explain the cosmic red shift, due to a radial ether wind.

1965 ◽  
Vol 43 (1) ◽  
pp. 57-73 ◽  
Author(s):  
A. H. Gillieson

A photon model is postulated whereby the peculiar nature of the observed solar red shift is explained, and by which the extragalactic red shifts are interpreted as caused not by the Doppler effect, but by interaction and consequent loss of energy of the photon in passing through the inhomogeneities of the gravitational field in space.


2017 ◽  
pp. 5033-5040
Author(s):  
Dr. Dan Brasoveanu

Big Bang theory postulates the red shift of light coming from distant galaxies is caused by the Doppler Effect.  Like Plato’s astronomy, Big Bang theory has to be continuously propped up by countless patches in order to deal with new observations.  Plato’s astronomy required countless epicycles within epicycles.  Big Bang requires patches such as dark energy, dark matter, cosmic inflation, accelerating expansion of the Universe and countless revisions of Hubble’s constant.  In addition, this theory and the fundamental law of mass and energy conservation are mutually exclusive; according to Big Bank all energy and mass appeared suddenly out of nothing.  There are of course Big Bang versions that try not to contradict the conservation law.  Such theories postulate a multi-verse populated by an infinite number of Universes or an infinite number of Universe instances.  In other words, either the most basic law of physics or Occam’s razor must be rejected in the most outrageous manner possible because otherwise the Doppler Effect cannot be used to explain the cosmic red shift.  For these reasons, some astronomers promoted the stationary Universe theory and assumed that photons lose a significant amount of energy while traversing intergalactic distances and therefore suffer a red shift.  This assumption is the basis of all Tired Light theories.  According to Tired Light, photon energy loss is caused by collisions with other objects such as gas molecules or dust.  As a result, this theory was quickly dismissed, because this loss mechanism cannot explain the broadening of supernova spectra, the variable rate of photon frequency decay and the fact that the image of distant objects is not blurred.  Subsequently other versions of Tired Light theories were ignored because supposedly any other loss mechanism is not compatible with GTR field equations.  According to these equations, when the photon structure is ignored, the energy momentum-tensor of a photon moving freely through space is constant.   Experiments with laser beams show this conclusion is not exactly true.  Therefore even free photons actually lose some minute amount of energy.   What physical mechanism may explain this loss?  A simple experiment with a common object will immediately reveal this mechanism.  Internal interactions are the main mechanism responsible for the gradual dampening of spring oscillations and loss of energy, not collisions with other objects.   When damping of photon oscillations caused by internal friction is considered, a new version of Tired Light can be formulated; a version that is validated by all astronomic observations without recourse to any patches and without rejecting the law of energy and mass conservation or Occam’s razor.


1964 ◽  
Vol 86 (2) ◽  
pp. 111-116 ◽  
Author(s):  
S. M. Wu

This paper is a continuation of a previous paper in which the basic philosophy of response surface methodology has been explained and a first-order tool-life-predicting equation has been developed. This part of the paper illustrates the development of a second-order tool-life-predicting equation in 18 and 24 tests. It was found that the second-order effect did not show statistical significance within the cutting ranges of this project; however, the second-order effect of cutting speed has been found important by the study of residuals. If only one independent variable is investigated, a minimal number of tests can be used to find a second-order equation. Examples of designs in three, five, and six tests are illustrated.


2020 ◽  
Author(s):  
Mark Zilberman

This article describes the "Dimming effect" that is produced by the Doppler effect applied to a quantity of individual photons arriving to a receiver from a moving source of light. The corpuscular-wave dualism of light suggests that the well-known Doppler effect, which is currently applied only to the wave component of light, should also be considered for the corpuscular component of light. Application of the Doppler effect on a quantity of photons leads to the "Dimming Effect" - as the faster light source is moving away from observer - the dimmer its brightness appears. While the described dimming effect is negligible for low-speed light sources, it becomes significant for light sources with a velocity comparable to light speed in a vacuum. The relativistic adjustments for time dilation cause the described dimming effect to be even stronger. For example, the "Dimming Effect" for an object moving away from the observer with the speed 0.1c is 0.904 and for an object moving away from the observer with the speed 0.5c is 0.577. Article also provides the formula for the calculation of "Dimming effect" values using the red-shift parameter Z widely used in astronomy as N/N0=1/(Z+1). If confirmed, the "Dimming effect" must be taken into account in calculations of astronomical "Standard Candles" and in particular in the "Supernova Cosmology Project", which has claimed the acceleration of the Universe's expansion and led to the introduction of dark energy.


1972 ◽  
Vol 94 (3) ◽  
pp. 649-654 ◽  
Author(s):  
W. F. Van Tassell ◽  
D. B. Taulbee

Solutions of the second order longitudinal curvature boundary layer equations near the stagnation point of a two-dimensional circular cylinder are presented. Four cases corresponding to 1 first order locally similar solutions, 2 first order nonsimilar solutions, 3 second order locally similar solutions, and 4 second order nonsimilar solutions are considered. For each of the four cases, results for four different altitudes are given. The only second order effect considered is longitudinal curvature. Based on the numerical results, it is concluded that similarity and curvature assumptions can alter the skin friction calculations significantly. The heat transfer calculations are much less sensitive to the various assumptions, at least for the cases studied in this paper.


2008 ◽  
Vol 62 (5) ◽  
pp. 313-316 ◽  
Author(s):  
Octave Levenspiel

If we assume that the observed Redshift of starlight is due to the Doppler effect we end up with models of the universe which contradict the basic laws of science. If we assume that the red shift may be due to a tiring of light, an assumption still to be tested, we end up with no contradiction with the laws of science. You the reader must choose.


The Raman effect in crystals is treated in this paper with the help of Placzek’s approximation. It consists of contributions of different orders with respect to the amplitudes of the vibrations; the first-order effect is a line spectrum depending only on the vibrations of infinite wavelength, the second-order effect is a continuous spectrum depending on combination frequencies of all pairs of branches of the lattice vibrations, each pair taken for the same wave vector. In highly symmetrical crystals like rock-salt the first-order effect is zero. The second order effect can be calculated for rock-salt with the help of the tables of the lattice frequencies published by Kellermann. It consists of thirty-six peaks, each belonging to a combination frequency. The superposition of these allows us to determine without any arbitrary assumption about the coupling constants, the frequency of the observable maxima in fair agreement with Krishnan’s measurements. By adapting three coupling constants one can also determine the relative intensities of the most prominent peaks and obtain a curve which in its main features agrees with the observed one. The results show that lattice dynamics can account quantitatively for the Raman effect in crystals and that Raman’s attacks against the theory are unfounded.


2011 ◽  
Vol 243-249 ◽  
pp. 1405-1408
Author(s):  
Bo Li ◽  
Shao Bin Hu ◽  
Ya Xin Sun ◽  
Yan Wang

The deficiency of effective length approach and the necessity of second order analysis design on nonferrous engineering steel industrial plant are emphasized. Second order analysis approach by nonlinear finite-element with ANSYS is used to design an industrial plant. The example indicates that second-order effect should not be neglect and the result of first order analysis is not safe enough for industrial plant.


1957 ◽  
Vol 53 (2) ◽  
pp. 508-513 ◽  
Author(s):  
I. C. Pyle

ABSTRACTSecond-order perturbation theory, in conjunction with the usual treatment of electron-phonon interaction, allows us to calculate the correction to the first-order result for the scattering of phonons by electrons. It is shown that the second-order term is much smaller, and therefore negligible. This justifies the use of the first-order theory in the treatment of the interaction in metals and semi-conductors.


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