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Presentation . 2026
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Presentation . 2026
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From Magnetic Gears to Halbach Spheres

Hands-On Experiments with Dipoles
Authors: Rehberg, Ingo;

From Magnetic Gears to Halbach Spheres

Abstract

Talk presented at Universität des Saarlandes, Physikalisches Kolloquium der Naturwissenschaftlich-Technischen Fakultät. May 7, 2026: Using spherical neodymium magnets together with open-source graphical user interfaces, this talk presents four intriguing insights into dipole clusters: Eight interacting dipoles exhibit fewer than 16 million equilibria. Two dipoles realize two different cogging-free magnetic gears. Seven dipoles form a “catastrophe machine” illustrating tipping points. Icosahedral symmetry of dipole clusters is not just cool anymore.

In this version v2 some links were updated.

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Keywords

Magnetic resonance imaging, Catastrophe machine, Magnetic Phenomena, Magnetic cube puzzle, Graphical User Interface, Cogging free magnetic gears

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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