Surface Tension: Young-Laplace Equation

This lecture covers the concept of surface tension in liquids, focusing on the Young-Laplace equation and its application to understanding the shape of liquid drops. The instructor explains the reasoning behind the dimensions involved in the equation and the coefficient of proportionality. The lecture also delves into the energy considerations related to surface tension and provides examples of applying the Young-Laplace equation to determine the pressure inside soap bubbles. Additionally, the aging of foams and the Law of Laplace for any surface are discussed, emphasizing the forces acting on the walls.