A flying technique used to gain energy by crossing the boundary between air masses of different velocity. Dynamic soaring. It is a method birds and airplanes use to fly faster and longer without using extra energy by moving between layers of air that have different speeds.
Imagine you're trying to walk through a crowded subway station during rush hour, constantly dodging streams of people moving in different directions. This is similar to dynamic soaring, where a bird or aircraft gains energy by skillfully crossing the boundary between wind currents of varying speeds, much like you find quicker paths by weaving through the crowd. Just as you use the flow of people to your advantage to move faster, dynamic soaring involves using the contrasting air velocities to gain speed and conserve energy, making efficient progress through the air.
