Surface Tension in Soap Bubbles

This lecture covers the concept of surface tension, focusing on the behavior of soap bubbles. Starting with the definition of surface tension as surface energy and force, it explores Laplace's law, wetting phenomena, and the impact of gravity. The presentation delves into the Marangoni effect and the factors creating surface tension inhomogeneities. It also discusses the competition between gravity and surface tension, capillary length, and Jurin's law. The lecture concludes with a demonstration of capillary rise and the overpressure in soap bubbles.