Phys. Rev. Focus25, 20 (2010) – Published May 28, 2010
Drops of water striking a bed of grains can leave a wide range of crater shapes and sometimes a bigger impression at low and high impact speeds than at medium speeds. The work may help geoscientists identify ancient formations.
Phys. Rev. Focus21, 2 (2008) – Published January 15, 2008
A pair of colliding water droplets merges on the rebound, rather than when they’re squeezing against each other. The results should improve understanding of the separation process of oil-water mixtures important in industry.