You dip your teabag into a cup of boiling water and watch the clear steaming liquid slowly change into an inviting rich red. The laws by which the particles of tea spread from the source of high ...

Egg yolk may appear runny and uniform, but on the nanoscale, it is one of the most crowded biological fluids in nature.

Brownian motion, the incessant random movement of microscopic particles driven by thermal fluctuations, plays a pivotal role in particle transport within porous media. Porous materials, characterised ...

It is commonly assumed that tiny particles just go with the flow as they make their way through soil, biological tissue, and ...