e "walker" is a coherent object, which exists onlythrough the association of the wave and the droplet. Ifthe drop coalesces with the bath, the wave vanishes.Inversely, if the waves are damped (for example inregions where the liquid layer is thin), the drop stopstravelling. In the following experiments, the propertiesgiven to these walkers by the non-local character oftheir waves are explored.We will successively describe
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