In the last ten years, advances in experimental techniques have enabled remarkable
discoveries of how the dynamics of thin gas films can profoundly influence the behavior of …

Whether colliding drops will merge with or bounce off each other is critical to numerous
processes, and the physics involved is notoriously complex. In particular, experiments show …

When liquid drops impact on solid surfaces, an air layer forms in between the drop and the
surface, acting as a cushion to mitigate the impact. In this work, we focus on delineating the …

A droplet falling toward a solid surface displaces the surrounding air until it encounters a
defect, and contact nucleates. On atomically smooth surfaces devoid of defects, contact can …

Collisions of liquid drops are key to a wide variety of processes, including raindrop
formation, inkjet printing, spray cooling and disease transmission. When a liquid drop …