Stokes-Einstein equation

The Stokes-Einstein equation relates how fast tiny particles move in a fluid (like particles in water) to the fluid's thickness (viscosity), the temperature, and the particle's size. Essentially, it shows that smaller particles or higher temperatures make particles move faster, while thicker fluids slow them down. The equation helps scientists understand diffusion, the way substances spread out in liquids, which is important in fields like chemistry, biology, and medicine. It provides a way to predict how quickly molecules or particles will move in different environments.