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Shows how to use a deep follow board; the technique of facing, ramming, and venting a deep green sand core; how to use a cheek in a three-part flask; and the purpose and method of step-gating.
Compares a hungry, active rat with a satiated, inactive rat. The hungry animal learns to get food by pressing a bar, while the satiated animal goes to sleep. To demonstrate that failure to learn is...
This film follows developments in music through human history supplemented by visuals of art and architecture of the period. Traces ancient civilization through to the 18th century with a heavy con...
Vern Reimer gives instruction, through demonstrations, on how to improve a drummers performance. He discusses the common mistakes made by student drummers and how to correct them. Targeted for the ...
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.
Portrays the role of Nanking in the history of China. Pictures its modern city life and its surroundings, including the Yangtze River, the mausoleum of Sun Yat-sen, ancient landmarks, and famous bu...
Shows interlocking of effects of the endocrine and nervous systems in man; illustrates the types of nerve cells and impulse transmission; explains the functions of the cortex, cerebellum, hypothala...
Depicts the daily life in a seacoast town in 1845 as it is seen by Chris, a boy of thirteen, who is completing school and must choose his future occupation. Pictures the work of the town tradesmen-...