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The seventh in a series of a film about the Americas, this film shows the water, rail, motor, and air transportation routes of Latin America, tracing their development from early Spanish exploratio...
Shows how to operate the controls of a vertical turret lathe, set up tools in the main turret head, rough-face and rough-turn an aluminum casting, and drill the center hole.
A message from Donald M. Nelson, chairman of the War Production Board, urging Americans to save metals, rubber, and greases for the World War II effort.
Shows how surface plates are used to check the flatness of surfaces, types of scrapers, how to remove high spots, and how to determine when a surface is scraped flat.
Shows how surface plates are used to check the flatness of surfaces, types of scrapers, how to remove high spots, and how to determine when a surface is scraped flat.
United States. Office of the Coordinator of Inter-American Affairs; Ralph E. Gray, A.C.L. : photographed and produced by
Summary:
A colorful travelogue of modern, urban life in Mexico City. "Shows scenes typical of modern Mexico, such as the tall buildings and wide boulevards of Mexico City. The canal leading to Xochimilco, w...
Demonstrates the administration of the revised Stanford-Binet intelligence test and the calculation of the I.Q. Gives a brief explanation of principles, and shows the administration of form L to a ...
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...