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Develops basic concepts of electrical distribution, both cross-country and within the home. Complete distribution system is explained, with demonstrations of "line loss" and the use of fuses for overload protection. Reviews parallel and series circuitry. Summarizes, using questions.
Demonstrates modern techniques for teaching primary grade pupils to read, write, and do simple arithmetic. Shows children, participating in such classroom activities as reading-readiness tests, storytelling, and drills in word analysis, phonics, number recognition, and spelling.
Shows the importance of corn as an economic commodity. Illustrates the nature of the corn belt of the United States by utilizing sixty-one widely scattered locations. Emphasizes the role of corn as a food crop for early pioneers and as a factor in the "Westward Movement." Develops the interrelationships between corn farming, railroads, villages, and cities. Explains how farm mechanization, the development of hybrid seeds, and fertilizers have increased production with the resulting rise in the farmers' standard of living.
Shows the importance of corn as an economic commodity. Illustrates the nature of the corn belt of the United States by utilizing sixty-one widely scattered locations. Emphasizes the role of corn as a food crop for early pioneers and as a factor in the "Westward Movement." Develops the interrelationships between corn farming, railroads, villages, and cities. Explains how farm mechanization, the development of hybrid seeds, and fertilizers have increased production with the resulting rise in the farmers' standard of living.
Shows interlocking of effects of the endocrine and nervous systems in man; illustrates the types of nerve cells and impulse transmission; explains the functions of the cortex, cerebellum, hypothalamic area, and medulla; describes the reflex arch and the peripheral, central, and automatic divisions. Discusses the diseases of the nervous system.
[motion picture] A skilled potter demonstrates the four methods of glaze application: dipping, pouring, brushing, and spraying. Specific techniques and good craftsmanship are emphasized. Proper preparation of a piece for glazing and precise finishing before firing are shown.
Presents a high-school class studying god citizenship in the community and in the school. Dramatizes the manner in which the student committees organized projects for improving school elections, choosing proper representatives for student government, welcoming new students, and up-grading lunch room conditions. Emphasizes that good citizenship in the school produces good citizenship in the community.
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 Encylopædia Britannica Films, an acronym derived from Electrical Research Products, Inc.). "Designed to show how the sound film can surmount many barriers to human learning by bringing to the classroom concepts otherwise difficult or impossible to present" states narration. Examples of microphotography, animated diagrams, time-lapse and slow motion photography demonstrate the applications of the motion-picture film in the classroom. Travelogue, foreign cultures, training and trades are brought to the classroom. Cites a study finding that classroom films are particularly effective with "low I.Q." students. Includes time-lapse film of the solar eclipse of 1932.
United States Information Agency, United States. Office of the Coordinator of Inter-American Affairs
Summary:
The value of Brazilian quartz to the allied war effort is shown as narration proclaims "two-way radio is the one really new instrument in the armory of warfare." Explains the value of quartz in radio communication, showing how a wafer of its crystal makes possible the simultaneous broadcasting of many stations without overlapping. The film emphasizes the necessity for international cooperation in the war effort. Shows quartz mining in Brazil: pictures the hard manual labor involved in mining Brazilian quartz, the inspection, the exportation of most of it to the United States, and the laboratory cutting of it to fit the complex instruments of World War II. Personages: President Roosevelt, Brazilian President Vargas, Joseph Stalin, General Marshall, and Madame Chiang Kai-shek (see U.S. National Archives and Records Administration catalog record http://research.archives.gov/description/40254).
A Columbia short subject presentation, distributed for classroom exhibition by Teaching Film Custodians. Presents Stanley Brown, Donald Grayson, and others in a program of Stephen Foster songs: Oh Susanna, Beautiful Dreamer, Jeanie with the Light Browns Hair, Old Folks at Home, Camptown Races, and My Old Kentucky Home. Costumed performers in an antebellum Southern plantation setting, each song is given a brief introduction with invitation for the audience to sing along. [Spoken dialogue and song lyrics include mutliple uses of the pejorative "darky."]
[film] Filmed principally on the campus of Indiana University, this film depicts the activities of various organizations and classes as they contribute to the war effort. Shows President Wells meeting with deans and administrators to make curricular changes to meet new demands. Shots of classes in medicine, nursing, nutrition, physical education, military training, practice teaching, sciences, language, law, etc., show many students at their daily work. Reflects the tempo of a university campus geared to a wartime program.
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 possibilities of distributing perishable foods on a world basis. Shows the problem of family income, maintaining flow of food from producer to consumer, the problem of tariffs, and the intercontinental movement of major foods on an animated map background.
Shows how the horizontal boring, drilling, and milling machine operates; how to install the fixture; how to set up the workpiece; and how to select and install an end mill and a face mill.
Shows how to drill the saw starting hole; how to make the saw selection; how to set up a band saw machine; how to weld saw bands; how to saw an internal contour shape; and how to remove and store a band saw.
Shows types of reamers; how to check the size of reamers; and how to ream straight holes with straight-fluted helical-fluted, and adjustable-blade reamers.
Shows how to set up the turret lathe for the production machining of bushings from bar stock; how to install the collet; how to set up the hexagon turret; and how to set up the cross slide.
Shows the principle of centerless grinding; the basic elements of the centerless grinding machine; the basic principle of thrufeed grinding; how to set up the machine for an actual job (limited to mounting wheel, workrest, workblade, workguides, and diamonds); and how to true the grinding and regulating wheels.
Shows how to balance the grinding wheel; how to position the work for grinding; how to adjust the work guides; how to take the trial grind; how to eliminate taper in the workpiece; how to use a crown cam to dress the grinding wheel; and how to check the workpieces.
Shows how to mount on a special fixture for machining an irregularly shaped casting which cannot be held in a chuck; how to mount and center the fixture on a lathe; and how to grind tools for the machining of brass.
Demonstrates the proper procedure for checking a vacuum tube for shorts and cathode emission by using a tube tester. Also mentions exceptions to normal procedures for special types of tubes.
