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Library of Congress
Loc: Full of Hot Air
Did you know that the hot-air balloon is the oldest form of successful human flight? Briefly described is the history and construction of hot-air balloons. Follow the link to "images of hot-air balloons and balloon racing" to view...
Curated OER
National Park Service: Aviation: From Sand Dunes to Sonic Booms
Features 100 aircraft, airfields, research labs, military installations, battle sites, launch facilities, and other places that tell about people and events that made the U.S. a world leader in aviation. Highlights of this travel...