31. Drilling and tapping cast steel (18:58)

Date:
1941
Summary:
Technique of drilling and tapping blind holes in cast steel on a radial drill. A drill jig with loose bushings is used for locating the holes. Setting up the work on the table of the machine, setting the jig on the piece to the layout lines. Calculating the size of the tap drill and the method used when setting the machine to drill a number of holes to the same depth. A wizard drill chuck is used in the drilling operation, and a standard friction chuck for holding the tap. The action of a tap in a hole is shown in animation and the reason why a tap binds in the hole and must be reversed frequently when tapping in tough metals.

32. Duel at the OK corral : western legend (1:04:02)

Date:
1954
Main contributors:
William J. Thiele, William Bruckner, Jack Chertok, Lee Van Cleef, Kenneth Tobey, Henry Morgan, Keith Richards, Lyle Talbot, Peter Hanson, Teaching Film Custodians
Summary:
Teaching Film Custodians abridged classroom version of an episode of the Cavalcade of America television series, "Duel at the OK Corral" (season 2, episode 20), which originally aired March 9th, 1954 on ABC-TV. This film highlights the efforts of Marshall Wyatt Earp to free the West of dangerous armed gunmen. Earp's activities in Dodge City, Kansas, in Deadwood, South Dakota, and in Tombstone, Arizona are featured.

33. Durer and the Renaissance (13:55)

Date:
1961
Main contributors:
Beatrice Farwell, Paul Falkenberg
Summary:
Discusses the life of Durer and the pivotal point he represented in connecting the artistic development of Italy and Northern Europe. Presents examples of his work that show his passage from the Middle Ages to the Renaissance. Develops the idea that through a study of his work the fusing of his Gothic inheritance and the organic Renaissance can be observed.

34. Dynamics of solution (14:57)

Date:
1962
Main contributors:
Ellis Katzman, Elbert C. Weaver, John A. Skarulis, William H. Pasfield, Ross Lowell, Herman J. Engel, Robert Braverman, Peter Robinson, Geraldine Lerner, Max J. Rosenberg, Fisher Scientific Company
Summary:
Demonstrates the differences between saturated, unsaturated, and supersaturated solutions; that solutions are dynamic, not static in character; and also shows suspensions and colloidal dispersions. Presents characteristics of solutions and explains insolubility, solutions without chemical reactions, mixtures, suspensions, and the Tyndall effect in colloidal dispersions.

35. Essentials of good speech : colors 1 (11:00)

Date:
1974
Summary:
Discusses a well-known system for practicing pronunciation: articulation of consonants and enunciation of vowels. Emphasizes again more "parts" which are to be applied to "wholes." Shows how sounds are associated with a color code: blue for voiceless, red for voiced, and brown for nasal manner of articulation. Illustrates an early lesson at the "Presentation Stage" and introduces specific touch positions for color work.

36. Essentials of good speech : colors, 3 (11:10)

Date:
1974
Summary:
Discusses shaping the pronunciation of vowels and consonants. Depicts the teacher helping the pupil combine voiced and nasal consonants with long vowels. Also presents more difficult sound combinations, including short vowels.

37. Essentials of good speech : colors, 4 (13:16)

Date:
1974
Summary:
Demonstrates one pupil's accomplishment of the early goals of color work: pronunciation of vowel and consonant combinations. Depicts a pupil producing the majority of speech sounds on request, and imitating (shaping) some complex sounds: "SH", "R", "L", and "S". Discusses the application of "part" learning to the pronunciation of a new word, "talent," which the pupil sees in print.

38. Essentials of good speech : duration 1 (13:11)

Date:
1974
Summary:
Explains the contents of the Essentials of Good Speech. Discusses duration as an aspect of voice production and how it refers to the length of sound. Illustrates a lesson on duration at the "Presentation Stage" of Face A of the Speech Model. Shows the pupil learning a "part" (Duration) which will later be applied to a "whole" (word or words).

39. Essentials of good speech : duration 2 (13:46)

Date:
1974
Summary:
Presents a lesson at the "Imitation Stage" on duration, covering the "part" that will later be applied to a "whole" word or words. Depicts the shaping of the pupil's duration of vowels, using three levels of reinforcement.

40. Essentials of good speech : duration 3 (12:17)

Date:
1974
Summary:
Presents a lesson at the "Production Stage" on duration, an aspect of voice production. Depicts the pupil producing vowels of long or short duration on request. Points out how the knowledge and skill of the "part" learning of duration is then applied to the word "welcome." Demonstrates the use of verbal direction alone to help the pupil learn correct syllable duration in the word.