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. 2020 Dec 2;6(49):eabd2508. doi: 10.1126/sciadv.abd2508

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Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 6 — (A) Detailed comparison of kymographs of the same phase shift (−π/3) for simulation and experiment. The slope of the traced line on the direction of the traveling pattern corresponds to the traveling speed of the wave in the fluid. (B) Backflow wave speeds for simulation and experiment in function of the phase shift. Backflow wave speeds match the metachronal wave speed of cilia (blue line), confirming Stokes flow conditions.