18441. Westward to Greece (29:31)

Date:
1957
Summary:
Discusses current theories on the origin of the Semitic alphabet. Illustrates the acrophonic principle of alphabetization by the development of several letters from the Semitic through the Greek an...

18442. Wet-Mounting Pictorial Materials (11:43)

Date:
1954
Main contributors:
Indiana U Audio-Visual Center
Summary:
[motion picture] Explains the advantages of wet mounting paper materials on cloth, and then demonstrates the wet-mounting process in detail. Also shows methods of displaying wet-mounted posters, ch...

18443. Wetlands (10:39)

Date:
1944
Main contributors:
United States. Department of Agriculture. Soil Conservation Service
Summary:
A USDA production conveying the department's policy recommendations for the development of unusable wetlands into productive agricultural land. Narration explains that, for much of the year, land w...

18444. Wexler, Nancy, Geneticist (43:33)

Date:
August 7, 2016
Main contributors:
Wexler, Nancy; Shanahan, James
Summary:
This week, we’ll hear from Nancy Wexler, a leading geneticist and neuropsychologist whose research led to the identification of the Huntington’s disease gene. Her research has also led to the disco...

18445. Whales and whalermen (21:54)

Date:
1957
Summary:
Depicts a whale hunt in the Indian Ocean off the coast of South Africa. Shows life on board the whaler and events preparatory to the finding and killing of these mammals. Explains that whaling is a...

18446. Whaling (15:28)

Date:
1959
Summary:
Host Bash Kennett tells the story of whales and whaling, describes the harpooning of this mammal, and explains the uses of whale oil. Songs performed include "The Whale" by Burl Ives, and"The Green...

18448. What Are Families For? (22:18)

Date:
1974
Main contributors:
National Instructional Television
Summary:
Episode 28 of the Agency for Instructional Television Series All About You, an elementary course in health education designed for children to help them understand basic human anatomy, physiology, a...

18449. What are the real problems of co-existence? (29:10)

Date:
1955
Summary:
The problem of co-existence between rival nations is pin-pointed as a student from Israel takes issue with his counterpart from Egypt on the situation in the Middle East. The two appear with studen...

18450. What Are They? (Using Criteria) (15:30)

Date:
1979
Main contributors:
National Instructional Television
Summary:
Episode 35 of Thinkabout, a series of sixty programs to help students in 5th and 6th grade become independent learners and problem solvers by strengthening their reasoning skills and reviewing and ...