Aeronautics and Aerospace

Aeronautics is the science involved with the study, design, and manufacture of flight-capable machines, or the techniques of operating aircraft. While the term—literally meaning "sailing the air"—originally referred solely to the science of operating the aircraft, it has since been expanded to include technology, business and other aspects related to aircraft. One of the significant parts in aeronautics is a branch of physical science called aerodynamics, which deals with the motion of air and the way it interacts with objects in motion, such as an aircraft. Aviation is a term sometimes used interchangeably with aeronautics, although "aeronautics" concerns lighter-than-air craft, such as airships, while "aviation" does not.The broad body of scientifically based knowledge describing aeroplanes as objects subject to the laws of physics. The term is usually taken to mean knowledge which focuses upon the vehicle itself, rather than upon the associated commercial or operational usage, although in practice such a definition is not rigidly adhered to. Thus, aeronautics is taken to cover such topics as the generation of lift to make the aeroplane fly, the physical factors affecting manoeuvring, the production of thrust through the use of propellers and jets, the strength of the structure, and the way these various elements are combined to produce a functioning vehicle.