- An informative and exciting look at the basics of engineering demonstrated by a secondary school class that builds models of bridges from balsa wood
- Explains forces that work against real structures, such as live loads, people and cars, dead loads, the weight of the structure itself and stress from the weather
- Examines various bridge structures, like beam bridges, arch bridges and tension bridges, illustrates which designs are most appropriate for specific stresses
- DVD, 19 minutes
