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 ...

Neutral particles can outpace diffusion in electric fields, shifting motion regimes over time; the model predicts behavior in ...

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 ...

Researchers have figured out how to create a gas that, when cooled to freezing temperatures, will not experience resistance or diffusion. The atoms in this gas do not abide by the usual ballistic or ...