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Pushmepullyou: An efficient micro-swimmer

J. E. Avron, O. Kenneth, D. H. Oaknin

math-pharXiv:math-ph/0501049

Abstract

The swimming of a pair of spherical bladders that change their volumes and mutual distance is efficient at low Reynolds numbers and is superior to other models of artificial swimmers. The change of shape resembles the wriggling motion known as metaboly of certain protozoa.

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