In a new study, Northwestern engineers discovered that groups of tiny particles suspended in liquid oscillate together, keeping time as though they somehow sense one another's motion. The team used a ...
Scientists have observed a unique particle that moves easily one way, yet resists at 90 degrees. These semi-Dirac fermions were observed using their energy signature in a topological metal. Particles ...
Materials scientists are measuring the rolling friction of tiny, micrometer-sized particles. These measurements permit them to better understand everyday products such as concrete. For the first time, ...