<Tr> <Th> Known for </Th> <Td> Designed first successful human glider . Discovered the four aerodynamic forces of flight weight, lift, drag, thrust and cambered wings, basis for the design of the modern aeroplane . </Td> </Tr> <Tr> <Td_colspan="2"> Scientific career </Td> </Tr> <Tr> <Th> Fields </Th> <Td> Aviation, Aerodynamics, Aeronautics, Aeronautical engineering </Td> </Tr> <P> Sir George Cayley, 6th Baronet (27 December 1773--15 December 1857) was an English engineer, inventor, and aviator . He is one of the most important people in the history of aeronautics . Many consider him to be the first true scientific aerial investigator and the first person to understand the underlying principles and forces of flight . </P>

Who is credited with being the first person in history to be carried aloft