Brownian motion differs from diffusion most significantly in that diffusion results in a net transfer of material from one location to another on a macro scale, while Brownian motion is randomly...
If tiny particles like pollen are added to clear water and observed through a micrscope they will be seen to move about randomly. This was an early clue to the fact that matter is made of individual...
The brownian motion is the random movemement of microscopic particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium.