Rotating saddle trap as Foucault's pendulum

Kirillov, Oleg and Levi, Mark (2016) Rotating saddle trap as Foucault's pendulum. American Journal of Physics, 84 (1). pp. 26-31. ISSN 0002-9505

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Official URL: http://dx.doi.org/10.1119/1.4933206

Abstract

One of the many surprising results found in the mechanics of rotating systems is the stabilization of a particle in a rapidly rotating planar saddle potential. Besides the counterintuitive stabilization, an unexpected precessional motion is observed. In this note, we show that this precession is due to a Coriolis-like force caused by the rotation of the potential. To our knowledge, this is the first example where such a force arises in an inertial reference frame. We also propose a simple mechanical demonstration of this effect.

Item Type: Article
Uncontrolled Keywords: rotating systems, planar potential, saddle trap, Foucault pendulum, Coriolis force
Subjects: F300 Physics
G100 Mathematics
H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Oleg Kirillov
Date Deposited: 06 Dec 2016 16:14
Last Modified: 09 May 2017 20:18
URI: http://nrl.northumbria.ac.uk/id/eprint/28801

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