This course explores how the physics of laminar and turbulent flow apply directly to anesthesia delivery—linking Hagen-Poiseuille and Reynolds number concepts to real-world choices of rotameters, breathing circuits, IV cannulas, and endotracheal tubes—so you can predict how changes in diameter, length, viscosity, density, and pressure will affect gas and fluid flow, optimize equipment selection (including heliox use), and improve the safety and efficiency of anesthetic administration.