A review is presented on laboratory modeling of diffusion downwind of a continuous point source within a boundary layer of well defined height with turbulence driven by buoyant convection. Results of ...

Smelly particles, wilted veggies, and growing jellies! Smelly particles, wilted veggies, and growing jellies! The Curious Crew explores diffusion and osmosis using tea bags, scented balloons, and ...

A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...

In contrast to the conventional view that surface-trapped holes in CdS and CdSe nanoparticles are static and immobile, recent experimental and theoretical work has shown that these holes are dynamic ...