New Theory Describes Intricacies of a Splashing Droplet

Researchers at the Massachusetts Institute of Technology and USDA's Agricultural Research Service have found a way to track the thickness of a droplet’s rim as it splashes up from a variety of surfaces. This incredibly specific measurement, they say, is key to predicting the number, size, and speed of smaller droplets that can be ejected into the air. The findings model the physics of sprays, such as pesticides that splash back up from crop leaves, or raindrops that may pick up and spread diseases as they bounce off contaminated surfaces.