Fluid dynamics
From river flow to wind patterns, fluid dynamics explains some of the most common forces of nature. Physicists and engineers study flow rates of fluids, type of flow (like smooth or turbulent), friction, pressure, fluid thickness, and more to understand liquids and gases.
Anyone with air travel experience has benefitted from the study of fluid dynamics. The shape of airplane wings takes advantage of airflow, the curved top and flat bottom manipulating air pressure to lift the plane.
