Precise measurement of gravity variations during a total solar eclipse

Wang, Qian-shen; Yang, Xin-she; Wu, Chengbin; Guo, Honggang; Liu, Hongchen; Hua, Chang-chai

doi:10.1103/physrevd.62.041101

Cited by 29 publications

(16 citation statements)

References 8 publications

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“…1 in Ref. 1) shows two valleys outside the visual eclipse, similar to those in Fig. 3(a) above, corresponding to scattered-dominated gravity attenuation.…”

Section: Solar Eclipses and Two-valley Curvesmentioning

confidence: 65%

“…33 It is argued that the novel scattering-dominated two-valley curve has been already observed during at least six solar eclipses in the period 1954-1999. 1,16,31,32,34,35 The data reduction process to extract a positive signal from the observations is a nontrivial task because the size of the eclipse anomaly may be at the level of instrumental resolution, so that it is quite possible that positive signals may be present in other data sets. 4…”

Section: Introductionmentioning

confidence: 99%

“…2, p. 062002-2). a)hmunera@hotmail.com1 The usual unit in geophysics is the microGal: 1 lGal = 10 À8 m/s 2 .…”

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confidence: 99%

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Gravity attenuation and consistency with observed solar eclipse gravitational anomalies

Múnera¹

2011

Physics Essays

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During the solar eclipse of March 9, 1997, a Chinese group carried out an experiment specifically designed to detect possible gravity variations. They identified two significant anomalous lateral valleys, interpreted by them as a possible shielding effect of the Moon on the gravitational force of the Sun. This interpretation was criticized because only one central valley centered at maximum eclipse is conventionally expected. In April of 1918, Quirino Majorana started his work on gravity absorption at the Polytechnic Institute of Turin (Italy); experimentally he found that the value of his universal gravity quenching coefficient was h % 10 À12 cm 2 =g. In 1922, Majorana moved to the University of Bologna where he repeated the experiments obtaining h-values of the same order of magnitude. Estimates for h from the shielding of solar gravity by the Moon during solar eclipses typically are 2-3 orders of magnitude smaller, down to h % 10 À21 cm 2 =g from fluctuations of Moon's orbit. Then, some theoreticians discount the higher empirical laboratory values as being wrong. By analogy with photon attenuation in matter, an extension of Majorana's hypothesis is proposed here, where h represents both absorption and scattering, and becomes a variable parameter, dependent on the baryonic mix (Z, N) of the substance interacting with gravity. When attenuation is dominated by scattering, the residual gravity curve may exhibit two lateral valleys, as effectively observed in at least six solar eclipses from 1954 to 1999, described in the text. Therefore, gravity attenuation during solar eclipses is dominated by scattering instead of absorption as conventionally believed.Résumé: Au cours de l'éclipse solaire du 9 mars, 1997, un groupe chinois a réalisé une expérience spécifiquement conçu pour détecter de possibles variations de la gravité. Ils ont identifié deux importantes anomalies en forme de vallées latérales, interprétées par eux comme possiblement reliées à un effet d'écran de la Lune sur la force gravitationnelle du Soleil. Cette interprétation a été critiquée car une seule vallée centrée au maximum de l'éclipse est normalement prévue. La possibilité d'une absorption de la gravité, suggérée en 1920 par Quirino Majorana en Italie, est définie par le coefficient universel h % 10 À12 cm 2 =g qu'il a déterminé à partir de mesures en laboratoire. Les évaluations de h pour l'effet d'écran de la Lune sur l'attraction solaire pendant les éclipses solaires sont généralement inférieures de 2 à 3 ordres de grandeur, et même jusqu'à h % 10 À21 cm 2 =g en se basant sur les fluctuations de l'orbite de la Lune. Certains théoriciens considèrent alors que ces valeurs empiriques élevées sont fausses. Par analogie avec l'atténuation des photons par la matière, une extension de l'hypothèse de Majorana est proposé ici, où h représente à la fois l'absorption et la dispersion, et devient un paramètre variable qui dépend du mélange baryonique (Z, N) de la substance interagissant avec gravité. Lorsque l'atténuation est dominée par la dispersion et l...

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“…1 in Ref. 1) shows two valleys outside the visual eclipse, similar to those in Fig. 3(a) above, corresponding to scattered-dominated gravity attenuation.…”

Section: Solar Eclipses and Two-valley Curvesmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

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Gravity attenuation and consistency with observed solar eclipse gravitational anomalies

Múnera¹

2011

Physics Essays

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“…8. Gravity variations during a total solar eclipse have been precisely measured by Qian-Shen Wang, c Xin-She Yang, d Chuan-Zhen Wu, c Hong-Gang Guo, c Hong-Chen Liu, c and Chang-Chai Hua c , 28 and are plotted in Fig. 8.…”

Section: Correlation Of Anisotropic Gravitational Field and Earthqmentioning

confidence: 99%

New aether sink model for gravity

Choisuren¹,

Bayarsaikhan²

2013

Physics Essays

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This paper assumes that a perfect fluid aether flows into all material objects in the universe. A model for elementary fermions is developed by modifying the conventional conception of the perfect fluid aether. Consequently, a new aether sink model for gravity is proposed. The conventional concept of mass is extended within the framework of the proposed models. For a system that consists of two bodies of incomparable mass, the qualitative structure of a 2D-phase portrait of a spatial fluid (i.e., the perfect fluid aether) flow is predicted. In this flow, hyperbolic equilibrium points may coincide with the Lagrangian points. This paper suggests that a difference in the dynamic pressures of geodesic spatial fluid flows may generate inertial force, gravitational force, and centrifugal force and also the conventional equations for these forces are theoretically derived. The proposed models provide plausible explanations for gravitational anomalies such as the Pioneer anomaly and the correlation between earthquake activity and planetary positions, etc. V C 2013 Physics Essays Publication. [http://dx.Résumé: Cet article admet come hypothèse qu'un éther fluide parfait coule dans tous les corps matériels de l'univers. Un modèle pour les fermions élémentaires est développé en modifiant le concept conventionnel d'un éther fluide parfait. Conséquemment, l'on propose un Nouveau Modèle de Puits d'É ther pour la gravité. Le concept conventionnel de la masse est étendu dans le cadre des modèles proposés. Pour un système consistant de deux corps de masse incomparable, l'on prédit la structure qualitative de portrait de fluide spatial à deux dimensions de phase (c'est-àdire, l'éther fluide parfait). Dans ce flux, les points d'équilibre hyperbolique peuvent coïncider avec les points Lagrangiens. Cet article suggère qu'une différence entre les pressions dynamiques des flux spatiales géodésiques peut générer une force inertielle, une force gravitationnelle, et une force centrifuge, et les équations conventionnelles pour ces forces sont théoriquement dérivées. Les modèles proposés donnent des explications plausibles pour les anomalies gravitationnelles, telles que l'anomalie du Pioneer, et la corrélation entre l'activité de tremblement de terre et position des planètes, et caetera….

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“…Majorana interpreted these results in the framework of gravitational screening, obtaining in the first class of experiments with mercury a gravitational permeability coefficient about twice bigger than the one obtained in the second class. Objections to this interpretation soon arose, with current stronger limits coming from the study of solar eclipses and tides [18][19][20] (see also [21] for a discussion of shielding of dynamical gravitational fields such as gravitational waves). An alternative view in which the observed effect is due to a mass reduction coming from proximity masses was suggested in Ref.…”

Section: Higgs Field and The Superposition Principle For Gravitationmentioning

confidence: 99%

Gravitational vacuum polarization phenomena due to the Higgs field

Onofrio

2012

Eur. Phys. J. C

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In the standard model the mass of elementary particles is considered as a dynamical property emerging from their interaction with the Higgs field. We show that this assumption implies peculiar deviations from the law of universal gravitation in its distance and mass dependence, as well as from the superposition principle. The experimental observation of the predicted deviations from the law of universal gravitation seems out of reach. However, we argue that a new class of experiments aimed at studying the influence of surrounding masses on the gravitational force -similar to the ones performed by Quirino Majorana almost a century ago -could be performed to test the superposition principle and to give direct limits on the presence of nonminimal couplings between the Higgs field and the spacetime curvature. From the conceptual viewpoint, the violation of the superposition principle for gravitational forces due to the Higgs field creates a conflict with the notion that gravitational potentials, as assumed in Newtonian gravitation or in post-Newtonian parameterizations of metric theories, are well-defined concepts to describe gravity in their non-relativistic limit.

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Precise measurement of gravity variations during a total solar eclipse

Cited by 29 publications

References 8 publications

Gravity attenuation and consistency with observed solar eclipse gravitational anomalies

Gravity attenuation and consistency with observed solar eclipse gravitational anomalies

New aether sink model for gravity

Gravitational vacuum polarization phenomena due to the Higgs field

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