Frederick W. Lanchester was a British engineer and scientist who lived from 1868 to 1946. He is most famous for being the first person to investigate, study, and come up with a theory of aerodynamics – how things fly in the air. He studied how different shapes and sizes of wings and other objects affected their performance when it came to flying, and how much drag they caused. He found that some designs (like the delta wing and the swept back wing) were more effective for certain types of flight than other designs. He also helped to develop the modern automobile, inventing things like cylinders and the suspension system. Overall, his work has helped to make air travel and cars safer and more efficient!