The tendency of a stationary droplet, sitting on the surface of a large body of liquid, to eject a smaller droplet when it eventually coalesces with the body has long been known but its details poorly understood. A combination of high-speed imaging and numerical simulations casts new light on this intriguing phenomenon and its widespread implications.
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Thoroddsen, S. Droplet genealogy. Nature Phys 2, 223–224 (2006). https://doi.org/10.1038/nphys276
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DOI: https://doi.org/10.1038/nphys276
