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Anisosphere analysis of the equivalence between a precessing Foucault pendulum and a torsional balance

Verreault René. (2018). Anisosphere analysis of the equivalence between a precessing Foucault pendulum and a torsional balance. Journal of Physics : Conference Series, 1141, p. 1-11.

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URL officielle: https://dx.doi.org/doi:10.1088/1742-6596/1141/1/01...

Résumé

The residual anisotropy of a real Foucault pendulum is responsible for an oscillatory behaviour of the precession angle according to the original description given by Kamerlingh Onnes in his dissertation. A simulation of the experimental procedure of enchained runs, consisting of starting a short experiment at the azimuth at which a precedent similar experiment has been stopped, has been performed using the anisosphere model. It leads to the conclusion that the precessing pendulum undergoes oscillations in precession associated with an extremely shallow potential well analogous to the potential well of a very slow torsional balance. Such systems are therefore rendered sensitive to extremely-low-energy perturbations. To the author’s knowledge, the hypersensitivity of the oscillatory precession of the anisotropic Foucault pendulum has been unravelled for the first time thanks to the analysis and visualization power of the anisosphere model. In particular, the periodic apparent motion of celestial bodies appears to modify the anisotropy characteristic of the precession potential well. This may provide likelihood for the similar responses of the paraconical pendulum of Allais during the 1950’s and of the torsion pendulum of Saxl and Allen in 1970 to certain Sun-Moon-Earth syzygies.

Type de document:Article publié dans une revue avec comité d'évaluation
ISSN:1742-6588
Volume:1141
Pages:p. 1-11
Version évaluée par les pairs:Oui
Date:2018
Identifiant unique:10.1088/1742-6596/1141/1/012064
Sujets:Sciences naturelles et génie > Sciences naturelles > Astronomie et astrophysique
Sciences naturelles et génie > Sciences naturelles > Physique
Département, module, service et unité de recherche:Départements et modules > Département des sciences fondamentales
Mots-clés:anisotropy, Foucault pendulum, torsional balance, anisosphere model.
Informations complémentaires:Proceedings of International Conference on Mathematical Modelling in Physical Sciences 27–31 October 2018, Moscow, Russian Federation
Déposé le:15 mai 2020 12:54
Dernière modification:15 mai 2020 12:54
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