This is a portion of a very complicated Flash for eLearning Solution that was developed for NAR Aviation
Training Systems.  If you click on the Menu bar on the left-side of the screen, and choose "Relation between
Pressure and Altitude", you will be shown a short sample video.  This portion of NARs' eLearning Solution teaches
Basic Altimetry, explaining variations in atmosphere pressures.  The entire solution provides vast Aviation Training.
 You are only viewing a very small portion of a large eLearning solution.