Time-averaged image of a sequence of frames that show streaming 70 μm beads in a microfluidic cavity with a vibrating silicon chip. The collective rotation of the beads shows a farandolelike motion. The mean bead trajectory is overlaid; color indicates orthoradial velocity. Selected for an Editors’ Suggestion and for a Viewpoint in Physics.
From the article:
Chladni Patterns in a Liquid at MicroscaleGaël Vuillermet, Pierre-Yves Gires, Fabrice Casset, and Cédric Poulain
Phys. Rev. Lett. 116, 184501 (2016)
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