Brownian Motion

This model shows us the Brownian motion. It is a physical phenomenon in which some quantity is constantly undergoing small, random fluctuations. If the number of particles subject to Brownian motion is present in a given medium and there is no preferred direction for the random oscillations, the particles will tend to be spread evenly throughout the medium over a period of time. A special occasion which can be considered a macroscopic manifestation of Brownian motion on the microscopic level is called diffusion. Einstein gave us the theory of Brownian motion. It provides us with direct visual evidence for the existence of the point-like structure of matter. It suggests that we can see the molecular thermal motion with our own eyes.