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491. The challenge of ideas (30:37)

Date:
1961
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Summary:
Analyzes the basic ideological differences between "the American way" and the Communist State; describes the objectives and techniques used by the USSR to influence the peoples of the world; and em...

492. The Contest For North America (30:12)

Date:
0000
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Summary:
Traces the eighteenth century struggle for control of North America. Discusses the English-French rivalry and the French defeat. Considers England's pause to consolidate her position before attacki...

493. Doctors in space. Collision stations (29:06)

Alternative title:
Collision stations
Date:
1958
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Summary:
Discusses the problem of meteorite damage during space travel. Demonstrates the Navy's full-pressure space suit for emergency exit. Explains the difficulties of escape and survival in space. Featur...

494. Frontier boy of the early Midwest (15:23)

Date:
1962
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Summary:
Presents through the experiences of a boy, insights into numerous aspects of frontier life in the Midwest. Illustrates the importance of the school, the self-sufficiency of the settlers, and the de...

495. Navajo Indians (10:52)

Date:
1939
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Summary:
Tells the story of Taska and Alnaba, a young Navajo couple who are betrothed. Portrays their native environment and such activities as building a home, tilling the soil, tending sheep, carding the...

496. Summer on the farm (10:45)

Date:
1947
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Summary:
Joan and Jerry Johnson watch the growth of plants and animals on their parents' farm during the summer. They fish, watch a frog and a dragonfly, see a young robin leave its nest, help their parents...

497. Manchukuo (11:26)

Date:
1938
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Summary:
Depicts the Japanese occupation of Manchukuo. Describes the mechanization of industry. Includes scenes showing coal and iron mines, steel mills, railroads, government buildings, new housing, native...

498. Library Story (14:15)

Date:
1952
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Summary:
A librarian describes the many services of a modern library. She lists microfilm, Braille books, records, films, exhibits, newspapers, and magazines, as well as books, among available materials. S...

499. Gas for home and industry : world energy resources (16:34)

Date:
1950
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Summary:
Explains the role of fuel gas as a source of energy. Begins with the history of gas lighting. The cleanliness, efficiency and versatility of gas is investigated. Describes the production of various...

500. The southwestern states (11:01)

Date:
1942
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Summary:
Shows life in Texas, Oklahoma, New Mexico, and Arizona, and the topography, rainfall, and other characteristic features, including the imprint of Spanish and Indian cultures. Irrigation, stock rais...