16002. The discovery of dynamic lift (29:39)

Date:
1959
Summary:
The Wright Brothers solved three problems with their first plane: lift, control, and propulsion. The problem of lift was the one which caused the most controversial opinions between scientists and ...

16003. The Distance to the Sun (29:35)

Date:
1957
Summary:
Uses charts, models, and diagrams to illustrate basic concepts of solar measurement. Explains the use of parallax in finding the scale of the universe. Demonstrates how to find the distance to th...

16004. The distinction of work, play and leisure (28:49)

Date:
1957
Summary:
Distinguishes between work and play and work and leisure, and discusses the meaning of chores. Explains that work is that which we have to do for subsistence. Presents a derivation of the word "l...

16005. The diversity of plants, no. 4 : the lower fungi (25:52)

Date:
1961
Summary:
Describes the classification of the true fungi. Illustrates examples and characteristics of the phycomycetes and illustrates their life cycle. Discusses the slime molds. Shows several methods of co...

16006. The doctor (11:04)

Date:
1947
Main contributors:
Encyclopaedia Britannica Films Inc.; Louis W. Sauer
Summary:
Shows the day's activities of a child specialist in his office, on a home call, and at a hospital. He makes a physical examination, vaccinates a baby, visits his hospital patients, and diagnoses a...

16007. The doctor (14:19)

Date:
1945
Summary:
Shows the doctor in a small town performing his daily activities. Pictures him examining school children, visiting patients, and relaxing with his family. Stresses the close doctor-patient relation...

16008. The Dolls of America (15:15)

Date:
1959
Summary:
Tells how dolls were made by the pioneers. Explains how they used corn husks, dried fruit, and wax to make dolls. Host Bash Kennet sings "Ha Ha Thisaway", "Gogabie", "Buck Eye Jim".

16009. The dolphin kick (08:16)

Date:
1956
Main contributors:
Jorhal Pictures; Francis Dixon
Summary:
Slow-motion and underwater photography are used in demonstrating how swimming students emulate the motins of the dolphin as they learn the dolphin kick, the accompanying body undulations and the bu...