 Brownian motion of sol particles

Brownian motion refers to the random, erratic movement observed in small particles suspended in a fluid (liquid or gas), a phenomenon that is particularly significant in the study of colloidal dispersions, including sol particles. ### Understanding Brownian Motion: 1. **Historical Context**: The term "Brownian motion" is named after the botanist Robert Brown, who, in 1827, first observed pollen grains moving randomly in water.