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14121. The case of the tremendous trifle (20:10)

Date:
unknown/unknown
Summary:
Shows to the men and women of American industry the vital importance to the war effort of all the little parts that they are making. Discusses the importance of ball bearings to the Nazi war effort and the Allied strategy of crippling the bearings industry. Shows the planning and intelligence gathering that led to the bombing of ball bearing factories in Schweinfurt.

14122. The case of the tremendous trifle (20:01)

Date:
1944
Main contributors:
United States. Army. Signal Corps
Summary:
Shows to the men and women of American industry the vital importance to the war effort of all the little parts that they are making. Discusses the importance of ball bearings to the Nazi war effort and the Allied strategy of crippling the bearings industry. Shows the planning and intelligence gathering that led to the bombing of ball bearing factories in Schweinfurt.

14123. The case of the vanished toes... (29:51)

Date:
1959
Summary:
Visits the Brookfield Zoo to solve the mystery of how a large group of animals lost their toes. Explains how hoofed animals developed from ancestors with toes. Uses film clips of the dik-dik, giant eland, sable antelope, kudus, sitatunga, babirussa, and the hippopotamus. Tells the story of the mysterious Pere David Deer discovered in China.