Start Over Collection IU Audio-Visual Center

181. Learning and behavior ; what makes us human? (26:30)

Date:
1960
Summary:
Pictures the work of Dr. B. F. Skinner and his associates at Harvard University Psychology Laboratories in studying animal behavior and indicates the application of principles learned to the design...

182. Lenses (09:57)

Date:
1950
Summary:
Explains the effects of lenses on light, and shows the construction and use of a lens. Pictures the types of images formed by convex and concave lenses when an object is placed at varying distances...