That's because of a process called diffusion. Diffusion refers to the overall movement of particles from areas of high concentration to areas of low concentration. In living things, diffusion ...

SEOUL - Most of South Korea was covered by thick, ultra-fine dust for the second consecutive day on Jan 22, with such ...

Liquid dispersions with a high concentration of solid particles or droplets - often totally opaque - are typically found in production processes. Optical analyzers would require a high degree of ...

Fine dust levels to return to normal over weekend Most of South Korea was covered by thick, ultrafine dust for the second ...