Program 4:  Modeling the Unseen  pdf

            Scientific investigators need to explain things beyond the realm of ordinary perception.  The models used by scientists often represent flights of intuition and invention.  Focusing on some examples of models used in chemistry, this program emphasizes one classic example that explains the behavior of gases.

Running Time:  28:37

     Journey through the exciting world of chemistry with Nobel laureate Roald Hoffman as your guide.  The foundations of chemical structures and their behavior are explored through computer animation, demonstrations, and on-site footage at working industrial and research labs.  Distinguished scientists discuss yesterday’s breakthroughs and today’s challenged. 

Produced by the University of Maryland and the Educational Film Center. 

Released on cassette:  Fall 1989     The Annenberg/ / CPB Collection  1-800-LEARNER