Phys. Rev. Focus26, 11 (2010) – Published September 10, 2010
Simulated soils made of glass beads and various pastes dry at different rates, depending on the properties of their smallest particles. The work suggests new ways to study an aspect of soil that is critical for agriculture.
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.
Directed percolation, a class of nonequilibrium phase transitions as prominent as the Ising model in equilibrium statistical mechanics, is realized experimentally for the first time, after more than fifty years of research.