The essence of Brownian Motion

Brownian motion is the random motion of macroscopic particles (not molecules) in a fluid. This motion never stops. The trajectory of Brownian particle seems extremely erratic. Two identical particles under the same initial conditions move absolutely different and completely independent of each other. Brownian motion is faster for smaller particles Increasing the temperature of the fluid (or decreasing the viscosity) leads to a more active motion of Brownian particles. The speeds of Brownian particles are much less than the speeds of molecules. Brownian motion is caused by random collisions of small macroscopic (Brownian) particles by chaotically moving molecules. Oleg Yavoruk, physics teacher All Background images are from “Future Physics Laboratory” Music: Back Roads Ramblin by Scott Dugdale