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Two boys, both between the ages of four and five, are subjects in a study of aggressive and destructive impulses. The film shows how differently two children, but a few months apart in age and from similar backgrounds, respond to a graduated series of opportunities and invitations to break balloons. Demonstration film of a projective technique developed by L. Joseph Stone.
Describes the work of engineers who seek practical solutions to the problems of food and fiber production and processing. Includes scenes of pineapple and sugar-cane harvesting in Hawaii, the new Teflon plow, and interior views of a cotton spindle picker and an ensilage harvester in operation.
Special Guest: Dr. Caldecott is a geneticist with the cereal crops brand of the United States Department of Agriculture and an associate professor in the Department of Agronomy and Plant Genetics at the University of Minnesota.There is an area of scientific endeavor that will serve to illustrate one important method in which atomic energy is being utilized by agriculture scientist. This area envelopes the science of genetics. Dr. Warren F. Witzig and Dr. Caldecott discuss this science and the use of atomic energy in this area to provide basic information of life and life processes for the use of the applied agriculturalist. Many examples of how radioactivity has helped the agriculturalist are demonstrated in this program.
Discusses agriculture in terms of the raising of hogs, beef, and dairy cattle. Explains that corn is the vital link between the soil and the production of these animals. States that the large production of corn and farm animals in the United States enables us to eat 61 times as much meat per person per year as the average Japanese citizen.
In this program, Dr. Sumner uses maps and graphs to demonstrate another reason why the soil is considered to be the most precious of all natural resources. He draws the attention to the variety of crops which we raise in large quantities within our borders. He gives production figures added meaning with descriptions of the agricultural production of Japan and India.
Correlates the growth of farming in America with the country's progress in becoming a great nation. Illustrates wildlife, land, and cattle in pioneer days. Describes homesteading and the establishment of land-grant colleges. Depicts the increase of farming through improved mechanization and rapid farm to market transportation. Illustrates the need for laws and regulations to control farming. To commemorate 100 years of USDA.
Visits a number of international trade fairs and identifies their purposes and contributions to the United States agricultural program. Illustrates ways United States agricultural products are introduced to actual and potential customers. Studies some of the agricultural export items which have been favorably influenced by the trade fair. Proclaims the importance of foreign markets as an outlet for our agricultural surplus.
Visits a number of international trade fairs and identifies their purposes and contributions to the United States agricultural program. Illustrates ways United States agricultural products are introduced to actual and potential customers. Studies some of the agricultural export items which have been favorably influenced by the trade fair. Proclaims the importance of foreign markets as an outlet for our agricultural surplus.
A floating feather and an experiment with a balloon arouses a young boy's curiosity about the physics of air and the usefulness of air pressure in suction cups, in bicycle and automobile tires, and in a car lift. Shows how air pressure enables an airplane to fly.
Explains basic physical principles involved in launching, flying, and controlling an airplane. Uses animation to demonstrate how the shape of the airfoil produces lift during flight. Also features some of the most modern aircraft in the world.