Splashing of a water drop containing a few particles

We study the effects of adding one or a few solid particles in a drop impacting onto a solid surface. The solid particles are inserted at the bottom of the drop before it impacts onto a solid surface at different impact velocities. The particles first hit the solid surface and rebounds vertically, first through the drop and then eventually emerging from its apex. For the case of a single particle, we have systematically varied the particle size, density and impact velocity, to characterize the velocity threshold above which the particle separates from the drop. We have then extended the study to adding up to four particles simultaneously in the impacting drop. We propose some scaling arguments to model the separation of the particle and the fascinating splashing morphology observed.