<http://schema.org/description>
"In the time after World War II, the U.S. military greatly reduced the number of planes produced each year and eliminated thousands of jobs. This time was not, however, without advances in the aviation field. What were some of the major technological advances in flight?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/transport/flight/classic/post-world-war-ii-flight1.htm>