News Finding: Bacteria’s tail spins make water droplets swirl 
Paper Finding: These results, consistently found by sampling over 20 cells, confirm the prediction from simulations: while all the bacteria point in the same direction (outward), the bulk microswimmers move overall in a backward fashion, opposite to the boundary layer motion.
News Context: Bacteria’s tail spins make water droplets swirl 
Paper Context: Yet, the relation between the flagella position and the mean membrane position and the flagella bundling at the rear of the bacteria reveal that the cell is pointing to the topleft corner, in a direction opposite to its motion. These results, consistently found by sampling over 20 cells, confirm the prediction from simulations: while all the bacteria point in the same direction (outward), the bulk microswimmers move overall in a backward fashion, opposite to the boundary layer motion. As shown in previous sections, experiments and simulations with both steric and hydrodynamical interactions are in qualitative agreement on both micro-and macroscopic scales.