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Figure 1

From: Active particles crossing sharp viscosity gradients

Figure 1

Trajectories of Chlamydomonas Reinhardtii going from low to high (top) and high to low (bottom) viscosities from recent experimental work25. The trajectories on the left are relatively steep (closely aligned to the interface-normal) while those on the right are relatively shallow and display scattering at the interface when going from low to high viscosities. Image is from the paper by Coppola and Kanstler25 which is licensed under https://creativecommons.org/licenses/by/4.0/CC BY 4.0.

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