801. Time (18:15)

Date:
1959
Summary:
Presents methods of determining and keeping time and the uses of time. Traces the development, adoption, and designation of time zones and demonstrates the need for an International Date Line. Contrasts the use of Daylight Savings Time and Standard Time in the winter and summer. Portrays the role of the U.S. Naval Observatory in determining the time of day and the role of the National Bureau of Standards stations WWV and WWVH in disseminating time signals. Presents specialized uses of time in determining rate and frequency.

802. Time dilation : an experiment with mu-mesons (36:00)

Date:
1962
Summary:
Presents by experimental means the dilation of time by using the radioactive decay of cosmic ray mu-mesons. The experiment shows how data are taken from the decay of mu-mesons at rest, mu-mesons which arrive on top of Mt. Washington, and the number that survive to reach sea level. From the results of these time distribution measures the conclusion is drawn that the mesons keep time at about one-ninth the rate they do when they are at rest.

803. Time for sale (02:57)

Date:
1945
Main contributors:
United States. War Finance Division
Summary:
Incorporates footage originally used for the Japanese-produced newsreel, New Philippines News to show the horrible conditions that American prisoners experienced in enemy camps in the Philippines as a way to raise money through the sale of War Bonds.

804. Time for Talent (29:00)

Date:
1961
Summary:
Describes how any community can provide for academically talented students by using actual classroom scenes as examples of those communities exploring this new educational development. Shows how talent can be discovered through tests and counseling and encouraged by community awareness. Demands that schools must do more than identify motivate and counsel the talented students but must realign and adapt present methodology at all levels of instruction. Suggests that guidance from administrators is necessary to provide the necessary equipment and help in getting quality teaching. Closes with statement by Dr. Charles E. Bish, director of Academically Talented Pupil Project of the NEA, who outlines course suggestions.

805. Time of the horn (06:04)

Date:
1964
Summary:
A small boy retrieves a discarded trumpet and loses himself in a jazz fantasy of his own imagining. Musical background is a Duke Ellington composition interpreted by Jonah Jones. No narrative is used.

806. Tin (17:05)

Date:
1930
Summary:
Shows opencast mining, sluicing, and bucket dredging in tin mines in the Malay States; tin as it is shipped to the United States; and the processes of making tin plate, tin cans for food containers; and various tin-base alloys.

807. Tippecanoe and Tyler too (12:51)

Date:
unknown/unknown
Summary:
Presents profiles of President William Henry Harrison and John Tyler with emphasis upon the presidential campaign of 1840. Uses maps, period illustrations, and photographs to highlight their childhood, education, pre-political activities, political growth, campaigning, and achievements in the White House.

808. To find a home (27:25)

Date:
1963
Summary:
Describes the experiences of two African American families when they try to rent an apartment in a middle-sized northern city: one family is repeatedly refused, but the other eventually finds an apartment.

809. To Speak with Friends (28:35)

Date:
unknown/unknown
Summary:
Stresses today's need for foreign language instruction to help foster international cooperation and understanding. Learning of a foreign language by elementary school children by the oral-aural method, before learning to read or write the language is suggested as a valuable teaching technique. Television's contribution to a nonprofessionally trained language teacher in both the teachers' own preparation and the teaching of the class is cited. Specially made films with foreign language narrations can be used to give a link between a language and the culture from which is developed. Language laboratories are indicated as means for allowing students more practice in listening and speaking the language than do conventional techniques.

810. Trading centers of the Pacific Coast (11:01)

Date:
1947
Summary:
Pictures Seattle, Portland, San Francisco, Los Angeles, and San Diego to illustrate how centers of commerce develop. Shows how the existence of surrounding farmland, forests, and mineral resources give rise to industrial activity, the creation of jobs, and the building of a city and trading center.

811. Trampoline fundamentals (11:42)

Date:
1960
Summary:
An instructor and a group of high school boys and girls demonstrate the basic fundamentals of trampolining, showing in detail the landing positions, aerial positions, front and back flips, and combinations of these fundamentals which lead to a variety of stunts for the advancing student.

812. Transmision of the parental pattern III (30:11)

Date:
1962
Summary:
Dr. Koppelman discusses probability in genetics, referring to Mendel's findings on the subject. He compares what happens on the average versus what happens every time.

813. Transmission, drive shaft and differential (13:50)

Date:
1945
Summary:
Shows how to check the transmission gear shift mechanism; how to inspect the drive shaft and the differential; how to check differential backlash; and how to test the running condition of the transmission, drive shaft, and differential.

814. Treasure in a garbage can (19:49)

Date:
1953
Summary:
Describes the handling and processing of waste from the time it is discarded into separate garbage cans to the point where it is used in new and repaired goods. Shows the collection, separation grading, preparation for melting, and distribution of refuse to centers according to its usefulness. Depicts the repair of discarded toys and the feeding of hogs and surveys the activities of the department of sanitation.

815. Treasure trove of jade (35:30)

Date:
unknown/unknown
Summary:
Shows the actual excavation of pre-Columbian sculpture at Veracruz, Mexico, by a National Geographic Society-Smithsonian Institution expedition. Emphasizes the discovery of the largest deposit of jade ever found.

816. Treasures of the forest (13:08)

Date:
1958
Summary:
Shows the overall story of lumbering in the Pacific Northwest from the falling of trees to the production of lumber, paper, venier, and plywood. Surveying by aerial photography is described. Transportation of logs from forest to mill, sorting at the mill, sawing, salvage of waste materials, and production of newsprint are shown with emphasis on timber conservation.

817. Trial at Nuremberg (26:14)

Date:
1958
Summary:
Depicts the trial of the top 21 Nazis charged with crimes against the peace, war crimes, and crimes against humanity. Uses American and Russian films to document this 11-month trial.

818. Trick and fancy roping (11:04)

Date:
1951
Summary:
Pictures the technique of plain and trick roping as it can be taught to children in schools and to patients in need of rehabilitative exercise. Includes a demonstration of a simple way to make a rope for roping.

819. Trigger happy Harry (21:20)

Date:
1946
Summary:
This gun safety film takes a humorous approach to demonstrate how some gun owners endanger others while handling a firearm. If a bad practice exists while handling a firearm then Harry is certain to exhibit it.

820. Troop train (11:01)

Date:
1943
Main contributors:
United States. Office of War Information. Domestic Branch. Bureau of Motion Pictures
Summary:
Shows the movement across the country in 1943 of the 201st Armored Division.