what is meant by the first term?
Aviation is the activities surrounding mechanical flight and the aircraft industry.
Aviation
Aviation is the activities surrounding mechanical flight and the aircraft industry. 
short note on international finance corporation (ifc) The International Finance Corporation (IFC) is an international financial institution that offers investment, advisory, and asset-management services to encourage private-sector development in less developed countries. where is it headquartered? Washington, D.C. when was it established? 1956 which are its investment services? In the area of private-sector development where is the above mentioned place located? United States of America how is the climate in the above city? Washington is in the northern part of the humid subtropical climate zone with chilly winters and light snow and hot and humid summers which things contribute to the city's economy? Federal governmental agency, Tourism is there any famous museum at this place? Yes, National Museum of Natural History, National Air and Space Museum; the National Museum of African Art when was the second one founded? August 12, 1946 is there any controversies related to it? Controversy erupted in over a proposed commemoration of the 50th anniversary of the atomic bombing of Japan. can you mention some directors of this museum? Philip S. Hopkins, Paul Johnston, Noel W. Hinners, Walter J. Boyne (acting) which space related things can be found in this museum? Aviation and spaceflight, as well as planetary science
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Aviation [SEP] Introduction
Aviation is the activities surrounding mechanical flight and the aircraft industry. "Aircraft" includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world.