2013/10/11 by Maxime Hubert, Hubert, Maxime, Galien Grosjean +11
Physics and Astronomy · #76D45 #82D40 #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Soft Condensed Matter (cond-mat.soft) #cond-mat.soft #msc:76D45 #msc:82D40 #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.1310.3094
5 pages, 6 figures and 2 videos for the gallery of fluid motion (The same ones but at different qualities.)
arxiv created 2013/10/11 · arxiv updated 2013/10/14
We present an experiment where three mesoscopic soft ferromagnetic beads are placed onto a liquid surface and submitted to the influence of magnetic fields. A vertical magnetic field creates a repulsion which counterbalances the capillary attraction. We show that the competition with a second, oscillating field, deforms the structure in a non reciprocal way. As a consequence, the structure is able to swim. This experiment is fully described in a fluid dynamics video attached to this submission.