Lecture
This lecture covers the concept of hydrostatic pressure variation in fluids, including the calculation of pressure differences in different scenarios. It also discusses the equilibrium of fluids in containers of arbitrary shapes, the graphical representation of pressure measurements, and the determination of hydrostatic forces on plane and curved surfaces. The lecture further explores the effects of atmospheric pressure on resultant forces and the principles of buoyancy and Archimedes' principle in determining forces on submerged bodies.