A collection of public-domain videos from days gone by
Ralph learns the five food groups, helping him to eat a balanced diet, and has more fun because of his better health.
Principles and maintenance of everyday appliances.
Reveals how modern science and technology have made possible the development of new artificial fibers for making textiles, specifically rayon and nylon.
Traces the course of alcohol through the body; shows the effects of alcohol on the brain; dramatizes the case of a problem drinker, including treatment.
Shows transportation corridors leading into and out of New York City, and efforts at transportation and infrastructure planning.
