Flapping wings are a type of propulsion system used by many biological organisms such as birds, insects, and bats. These wings generate lift and thrust by moving in a flapping motion, which is more efficient at smaller scales compared to traditional rotary mechanisms like propellers. In the context of nanotechnology, flapping wings are being studied to create micro-air vehicles (MAVs) and nano-air vehicles (NAVs) that can operate in complex environments.
