Physics: Claiming control of the coffee-stain effect

From Paris comes news of a new class of surfaces that (among other things) offer better control of coffee stains. Details are in the study: “Slippery pre-suffused surfaces,” A. Lafuma and David Quéré [pictured here], EPL (Europhysics Letters), vol. 96, no. 5, 2011. The authors, at Laboratoire de Physique et Mécanique des Milieux Hétérogènes, CNRS, […]