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Sports Sunday - Hot Air BalloonsSports Sunday - Hot Air Balloons
Sunday, Jan 23 2011 by kjfitz:
The hot air balloon is the oldest successful human-carrying flight technology and is a subset of balloon aircraft.
A hot air balloon consists of a bag called the envelope that is capable of containing heated air. Suspended beneath is a gondola or wicker basket (in some long-distance or high-altitude balloons, a capsule), which carries passengers and (usually) a source of heat, in most cases an open flame. The heated air inside the envelope makes it buoyant since it has a lower density than the relatively cold air outside the envelope.
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