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Orbits of all sorts

Donald G. Saari ()
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Donald G. Saari: Northwestern University

Nature, 1998, vol. 395, issue 6697, 19-20

Abstract: Can we predict how a group of bodies, attracting each other by gravity, should move? The short answer is no — once there are three bodies or more, the system is chaotic. But there are some special solutions. A new type of approximate solution is appealingly simple to construct: just draw any closed curve, and fill it with a large number of particles moving around at constant speed.

Date: 1998
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DOI: 10.1038/25607

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