points 1 and 2 lie on a streamline, the fluid has constant density, the flow is steady, and there is no friction. Although these restrictions sound severe, the Bernoulli equation is very useful, ...

The film discusses the principles of aerodynamics, focusing on the behavior of air as it interacts with different shapes and surfaces. It explains how air inertia affects velocity and direction ...

The rounded profile of a bird’s wing creates an airfoil, which generates lift and allows the bird to fly. But butterfly wings are flat. How do butterflies fly? Robert Kacmarcik, Green Valley ...