Uses animated graphics to describe a sonic boom and explain how it is produced. Illustrates how sound waves spread out from a stationary source, as well as from sources moving at different velocities up to twice the speed of sound, and then shows the intersection of a jet aircrafts's sonic boom cone with the ground

Daughter explores the way women are viewed in society by following three female characters on a Frid...
An introduction to the cast of this educational series about Economics, and how desire for more moti...
The second of three educational films made by Philip Abbott. A Nelson Company Production for Nationa...

Educational film for young children about police and their presence in society to help them. Also ai...
Discusses the problems and processes involved with decision-making. States that the key to decision-...
Why would a handsome lifeguard stress electrical safety in the home? Because he's a lifeguard for li...

A seasoned cowboy reminisces about his experiences, challenges, and the changing nature of cowboy cu...