Ornithopters are flying machines designed to mimic the flapping motion of birds or insects. They use wings that move up and down, allowing them to generate lift and propulsion. This concept has fascinated inventors and engineers for centuries, with early designs dating back to the ideas of Leonardo da Vinci. Modern ornithopters can be found in both research and recreational contexts. They are often used in studies of flight mechanics and aerodynamics, as well as in the development of advanced drones. Some ornithopters are even built for entertainment, showcasing their unique flight capabilities at events and exhibitions.