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Describes briefly the arduous processes by which the early settlers ground corn in their homes and focuses on the construction and operation of large water-powered mills. Shows farmers bringing their sacks of corn by horseback to the miller who, for a portion of the flour, grinds the grain to the desired texture, while the farmers catch up on the latest news. Explains the miller's activities as he goes through each step of the grinding process.
Through illustrations, shows high school and college students learning the use of various safety devices, rules, and procedures. Each illustration points out that the student should follow the directions given, should use the tools of chemistry properly, and should consult with the instructor when in doubt.
Demonstrates active vasomotion as it occurs in arterioles, terminal arterioles, and precapillary sphincters and as it affects the capillary bed in a bat's wing.
A skilled potter demonstrates the correct stacking of both green and glazed pottery in a small kiln as the narrator explains the factors involved. The potter then shows each step in firing the pieces.
Detailed reactions of the minute vessels and the blood which modify the flow through these regions are demonstrated by high magnification of a bat's wing. The form and behavior of the platelets within the circulation are shown before and after a mild injury.
Introductory scenes show the techniques used for mounting bats and recording the circulation in their wings. A view of the general distribution of the vascular components is followed by more detailed views of flow behavior in the various vessels, examples of lymphatic action, and the flow across the capillary bed.
[motion picture] Orients students to the opportunities and experiences for the study of government at a typical college or university. Emphasizes that government cannot be taken for granted and that everyone is a part of the government. Demonstrates various areas of government for study: American government, politics, public administration, comparative and internal relations, and immediate controversial problems. Concludes with the generalization that the study of government is democracy at work.
Shows a skilled ceramist demonstrating the step-by-step process of making simple molds of three types: slipcasting, drape, and press molds. Portrays the process from pattern-making to the completed object, and explains the steps at each stage.
Demonstrates three slab methods of pottery-making. Shows wedging, forming a candleholder directly from a lump of clay, rolling a slab for a simple tile, and constructing a flower container from several pieces of clay. Emphasizes the correct use of basic tools.
A group of fifth-grade children demonstrates the singing game "Skip to My Lou." After the introduction, the words are shown by animation. The boys and girls then demonstrate the action of the game in detail.