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Article summary: Researchers have discovered a new aerodynamic phenomenon that explains how birds are able to fly at slow speeds and take off from the ground. This phenomenon, called “vortex shedding,” occurs when a bird flaps its wings, creating a rotating air flow that generates lift. This allows birds to generate the necessary lift to take off and fly at slow speeds, even when the wind is not blowing.
Answer to the question: The article explains that the previously unknown aerodynamic phenomenon that allows birds to fly at slow speeds and take off from the ground is called “vortex shedding.” This occurs when a bird flaps its wings, creating a rotating air flow that generates lift, enabling birds to fly even in the absence of wind.