18281. Health in our community (13:27)

Date:
1959
Main contributors:
Encyclopaedia Britannica Films; Donald A. Dukelow; Larry Yust
Summary:
Deals with the actions of community health organizations in their efforts to fight disease. Shows the functions of the department of health in preventing and controlling the spread of contagious di...

18282. Distribution of foods (10:40)

Date:
1946
Main contributors:
Encyclopaedia Britannica Films, Inc.; O.E. Baker
Summary:
Presents technical developments in the preservation and transportation of foods, the economic problems involved, and the world flow of foods. Depicts how such developments have increased the possi...

18283. The Airplane Changes Our World Map (10:48)

Date:
1942
Main contributors:
ERPI Classroom Films, Inc.; Encyclopaedia Britannica
Summary:
Traces the history of mapmaking and representation of the globe on two-dimensional surfaces. Considers early problems of distortion in map projection, and reviews the projections of Mercator, Mollw...

18284. Exploring the universe (10:53)

Date:
1937
Main contributors:
Encyclopaedia Britannica Films; Walter Bartky
Summary:
Illustrates dynamic aspects of stars within our galaxy and of galaxies themselves by use of animated drawings. Includes changes in the Dipper, binary stars, eclipsing variables, trinary stars, mot...

18285. Bring the World to the Classroom (19:54)

Date:
1938
Main contributors:
ERPI Classroom Films, Inc.; Encyclopaedia Britannica Films Inc.
Summary:
Promotes the catalog of ERPI Classroom Films to educators, presenting excerpts from dozens of films with narration extolling their effectiveness (ERPI Classroom Films was the predecessor to Encylop...

18286. The Unique Contribution (29:38)

Date:
1959
Main contributors:
Encyclopaedia Britannica Films; Maurice B. Mitchell
Summary:
Presents a discussion by Maurice B. Mitchell, president of Encyclopedia Britannica Films, on the contributions of motion pictures to education and illustrates examples by use of film clips from sel...

18287. Philippines : land and people (14:03)

Date:
1960
Main contributors:
Encyclopaedia Britannica Films; Paul R. Hanna, Ph.D. Stanford University; William Deneen
Summary:
Describes the climate and topography of the Philippines and how these factors affecting the way the people dress, build their homes, and make their living. Calls attention to the influences of Spa...

18288. Cutting with carbide tools part 1 : single point (19:25)

Date:
1945
Summary:
Shows how to select the tool for the job; how to set up the job; how to calculate speed, feed, and depth of cut; how to machine on a lathe, using a single-point carbide tool; and how to correct uns...

18289. Drilling and tapping cast steel (18:58)

Date:
1941
Summary:
Technique of drilling and tapping blind holes in cast steel on a radial drill. A drill jig with loose bushings is used for locating the holes. Setting up the work on the table of the machine, sett...

18290. Interpreting test scores realistically (17:15)

Date:
1961
Summary:
Demonstrates use of standard error, comparison of scores with test norms in interpretation of test scores, and use of percentile bands rather than points. | Presents a lecture by Dr. Scarvia B. And...