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Many attempts had been made for man to fly before the Wright
brothers invented the airplane. There are various mythologies
that reference these attempts.
During the eighteenth century, balloons consisting of a gasbag, a
valve, a suspended basket, and ballast were developed. Leonardo
da Vinci was the first individual to solve the principles of
flight. Because of this discovery, the Montgolfier brothers were
able to send the first passengers aloft in a lighter-than-air
craft.
Since that time, there have been many variations in the
construction of airplanes. Supersonic jet interceptors and
subsonic jet bombers were developed in the 1950s. The jet
fighters were replaced with jet bombers that could fly higher and
faster. The United States has been successful in maintaining its
superiority over other nations because of the advances made by
aerospace technology.
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Updated: 12 March, 2004