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Tells the life story of bats. Shows live bats and pictures a bat's voice of and oscillograph. Explains how bats navigate by echolocation or sonar. (WGBH-TV) Kinescope.
There are many partnerships in nature where two plants may help each other, or a plant and animal may mutually benefit one another, or where two animals may contribute to each other’s welfare. You will see on this program an example of each. The lichen, a common plant, looks like one individual, but really consists of two kinds of plants living together. You will see this story through the microscope. And you will see the story of cross-pollination, in which bees and insects take nectar from the flowers and in so doing transfer pollen from one flower to another. Ever look inside a wood eating termite? You will and with a microscope to see a story of mutual benefit. Inside the termite lives a host of one-celled animals which assist the termite in digesting the cellulose in the wood he consumes. (WGBH-TV) Kinescope.
Illustrates and explains the chief properties of the important quadrilaterals such as the parallelogram, rectangle, rhombus, square, trapezoid, and trapezium.
Thomas F. Barton, Daisy M. Jones, Roger Niemeyer, James W. Taylor, Indiana University Audio-Visual Center
Summary:
Compares two dairy farms--one in Southeastern Wisconsin and the other in Central New York State. Shows the land use and cultural practices which reflect adaptation to such elements of the physical environment as topography, soil, precipitation, temperature, and length of growing season. Describes such man-made conditions that influence the marketing of milk as the proximity of farms to urban areas, sanitation requirements, and transportation and refrigeration facilities.
Erling M. Hunt, Wade Arnold, Abraham Ribicoff, Center for Mass Communication, Columbia University Press
Summary:
Discusses the purposes and functions of the five major divisions within the department of Health, Education, and Welfare. Describes the several offices, agencies, and bureaus, and indicates how these deal with foods, drugs, social security, vocational rehabilitation, and education. Emphasizes that the major concern of the department is to benefit individuals in their living. Narrated by Abraham Ribicoff, a former secretary of the Department of Health, Education, and Welfare.
Pathescope, Charles J. Vierck, Charles D. Cooper, Paul E. Machovina, Ralph S. Paffenbarger, Hollie W. Shupe
Summary:
Designed to be used with an engineering drawing text. Describes the relationship between the making of a drawing and various production operations in shop and factory. Then shows representative operations in the pattern shop, the foundry, the forge shop, the machine shop, and the assembly shop which depend upon the drawing.
Shows the Leonardo da Vinci drawings in the Windsor collection and includes such subjects as man, animals, architecture, machines for waging war, water in motion, and a sketch for "The Last Supper." Integrates translation of some of the artist's own notes with an interpretive commentary spoken by Sir Laurence Olivier.
Describes a geometric circle and defines and illustrates such terms as radius, congruent circles, chord, diameter, major and minor arcs, semicircles, and central angle. Shows the relationship between a central angle and its arc; presents methods for proving arcs equal in degrees and length; and describes the relationships of a diameter, a chord, and its intersected arcs.
Delta Films, E. H. C. Hildebrandt, Robert Pruitt, Evelyn P. Anderson, Seymour Zolotareff
Summary:
Uses examples of everyday objects to develop the basic formula V=Bh for computing the volumes of cubes, prisms, and cylinders. Builds each concept, formula, or definition through use of live action, animation, and application to a situation.
Falcon Films, E. H. C. Hildebrandt, Robert Pruitt, David Wisner, Evelyn P. Anderson, Seymour Zolotareff, Delta Films
Summary:
Uses a combination of animation and live-action photography to logically develop the formulas for determining the volume of pyramids, cones, and spheres. After reviewing the formulas for the volumes of prisms and cylinders, the volume of a pyramid with a rectangular base is determined. This is then related to pyramids with non-rectangular bases and cones, the volume of the latter being compared to a cylinder. Defines a sphere and portrays a method of determining its volume. Concludes with commercial and industrial applications of these formulas.