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The nature of juvenile law. The role of the police officer as he works with other community organizations to guide youth into constructive channels and to prevent delinquency.
Teaching Film Custodians abridged classroom version of a Cavalcade of America television series episode, "Smyrna Incident" (season 2, episode 15) which originally aired January 19th, 1954 on ABC-TV. A historical drama. In the late 19th century, U.S. Navy Commander Duncan Ingraham, the captain of an American ship anchored in the Turkish port of Smyrna, risks a hostile engagement with three Austrian battleships in the harbor when he demands the release of an Austrian-born man, who has applied for American citizenship, being held prisoner on one of their ships.
Teaching Film Custodians release which utilizes newsreel footage to present an overview of the administrations of President Harry S. Truman. Opens with scenes of the conclusion of World War II. Relates the selection of Truman as the running-mate of President Roosevelt and his subsequent succession to the Presidency. Touches upon salient news events of the Truman administrations, such as the development and use of the atomic bomb, labor strife and legislation, the 1948 election, the Truman Doctrine, the Berlin blockade, the organization of the United Nations and the Korean conflict.
Teaching Film Custodians classroom film of excerpts from the 1962 Allied Artists release feature film, “Billy Budd”, based on the novella "Billy Budd Foretopman" written by Herman Melville. Billy Budd, pressed into service aboard a man-of-war in the Royal Navy in 1787, becomes an object of hatred for the master-at-arms, John Claggert. When unjustly accused by Claggert of being part of a planned mutiny, Billy strikes him, causing a fall which unintentionally kills him. Believing that Billy is innocent, Captain Vere and the officers face a moral dilemna due to Admiralty regulations, which demand a court martial to sentence to death by hanging the innocent seaman who was provoked to strike the villainous master-at-arms.
Traces early development of the camera: how first efforts of March in France, Muybridge in U.S. came about as a result of movements of animals and humans. How subsequent development by Lumiere and Edison brought about the modern motion picture camera and projector.
Relates the history of man's effort to photograph and reproduce living movement. Includes the first scientific study of movement, involving 24 cameras stationed at intervals along a horse's path, Thomas Edison's work, and Lumiere's commercial projector for large audiences.
Glimpses at the origin of the motion picture, the contribution of Muybridge, Edison, and Lumiere, and fragments of the screen's first "epics." | Glimpses at the origin of the motion picture, the contribution of Muybridge, Edison, and Lumiere, and fragments of the screen's first "epics."
Traces the story of the "Chicago Picasso." Relates the artist's original conception of the Chicago sculpture, the people and processes involved in the fabrication, and finally the construction of the statue by a steel erection company. Visits the first major exhibit of the Picasso sculpture.
Presents and demonstrates the value of three ways to rest: sleep, relaxation, and change. Relates rest, exercise, and food to good health and pictures a boy, his sister, and his dog observing the rules to achieve good health.
This War Department enlistment film aims to recruit African Americans in its World War II engagement. The documentary has as its framework a black minister's explanation to his congregation of the reasons they should join the armed forces to fight the Nazis. The viewer sees historical re-enactments of African Americans as valued participants in U.S. armed conflicts dating from the American Revolution. Scenes also detail Black accomplishments in the country's history, with footage of Blacks as they served as judges and school teachers, conducted orchestras, played football, and served the U.S. Army in World War II. Footage is included of Jesse Owens and other Blacks as they competed in the 1936 Berlin Olympics.
Informs the police that alcohol may mask symptoms of both physical and mental disorders and suggests a system of observation that begins when a person is first seen by the police. It emphasizes the significance of alcoholism as a problem and stresses the increasingly humanitarian role of the police.
Presents several experiments to illustrate the characteristics of oxygen, including the effects of free oxygen upon mice and a lighted candle, the separation of liquid oxygen from liquid air, the breakdown of water by electrolysis, the freeing of oxygen from mercuric oxide by a catalyst, and the action of spontaneous combustion.
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.
**GRAPHIC CONTENT-ANIMAL TESTING** Presents Dr. W. R. Breneman, professor of zoology, Indiana University, as he uses chickens, frogs, mice, and chalkboard diagrams to demonstrate and discuss experiments showing the causes of the growth, maturation, and release of eggs and sperms. Demonstrates the removal, maceration, and injection of anterior pituitary glands; stripping of a frog; removal and maceration of a frog's testes; and the effects of injected hormones on the reproductive organs of immature animals. Discusses the effects of nervous stimuli, nutrition, temperature, and periods of light on reproduction.
Shows how the mold is removed from the finished plaster bust. Discusses the use of bluing in the first coat of plaster. Illustrates the use of the screwdriver and mallet in removing the mold. Concludes with a comparison of the model and the completed plaster portrait bust. (KETC) Kinescope.
Presents a fictionized story woven about episodes in the life of Robert Burns. Includes Burns's trip to Edinburgh to visit wealthy patrons and his ill-treatment at their hands. He recites to them "A Man's a Man for a' That." Returning to his native village, he stops the wedding of his sweetheart to another man.
Discusses the process of making a plaster cast. Points out how the molds are shellacked and placed together again. Demonstrates how the plaster is mixed. Shows the process of pouring the plaster into the mold. (KETC) Kinescope.
Girls from all over the United States tell how they feel about menstruation and how it has affected their lives. Emphasizes that menstruation is natural and healthy.
Examines the importance of the Rocky Mountains to the development of the Western States. Shows the dependence of agriculture and industry upon the water resources from the mountains. Discusses the region's mineral wealth, the importance of the timber industry to the Western economy, and the attractions of Western national parks and cities.
Shows activities of the beaver in its natural environment. Illustrates ways in which the beaver's teeth, feet, and tail help him in swimming, eating, felling trees, and repairing a broken dam. Reveals the unique construction of a beaver house, and stresses the importance of the animal as an agent of conservation and as a valuable fur bearer.
Contrasts Carolyn, an attractive newcomer to a high school, with Ginny, who despite her willingness to date all of the boys in the school, is unpopular with both boys and girls. Then shows through brief incidents how Carolyn and Wally are careful of their appearance, polite to others, considerate in arranging dates, business-like on the telephone, careful in planning their schedule of activities, cooperative with their parents, and always well mannered.
Designed to be used with a marriage text. Emphasizes that marriage partners must complement each other and that traits of personality appear in moments of stress, and pictures a series of young people reacting in a moment of stress. Points out the different types; then shows these same people in situations involving a member of the opposite sex. Analyzes personality traits in regard to mate selection and circumstances of successful marriage.
Patterns of light reflected from variColored plastics dance and flicker, giving the impression of an abstract ballet. There is instrumental and vocal accompaniment. Made by Jim Davis, an American artist in plastics.
Describes the many safety rules applicable to the industrial arts shop. Shows such measures as the use of proper clothing, goggles, and shields; the spacing of work areas; the use of tools; the disposal of waste; and the storage of lumber and inflammable liquids. refers to the safe use of power tools, the care of electrical equipment, and proper conduct in the shop. Concludes with a review of the principal safety precautions.
One in a series of twelve, one-reel films designed to present behind-the scenes activities of the motion picture industry. This film pictures a typical screen writer and analyzes his job. The task of the screen writer is to take a book or a story, strip it down to its elements, and put it together again so that characters move and live, so that the printed word is transformed into visual and audio patterns. To accomplish this task, he must know all about the technical aspects of picture making. | Content information imported from original IUCAT entry: "This is a behind the scenes look at the screenwiter. Made in cooperation with the Academy of Motion Picture Arts and Sciences."
The seventh in a series of a film about the Americas, this film shows the water, rail, motor, and air transportation routes of Latin America, tracing their development from early Spanish exploration to the 1940's.
"Newsreel pictures of the attack of Dec. 7, 1941, on Pearl Harbor. Closes with America's ringing answer to the enemy challenge." (War Films Bulletin of the Extension Division Indiana University, February, 1943, 5). This American newsreel portrays the attack on Pearl Harbor and the aftermath of the strike. Includes footage of President Franklin D. Roosevelt's December 8th "Infamy" speech in front of a joint session of Congress.
Shows the physical therapist how to teach the bed patient reconditioning exercises; how to teach the patient to walk in a walker; how to teach the various methods of crutch walking--two point, four point, and swinging; how to teach the patient to sit, rise, and climb stairs; and the safety factors involved in crutch walking.
Focuses on the conservation of important natural elements such as rubber, oil and metal needed to support the U.S. Victory Program. Viewers are shown various ways in which they can change daily habits to get the most out of these materials.
Observes six-, seven-, and eight-year old children at play and in school and emphasizes that children's play activities with their adherence to the rules, rituals, and regulations which have been established have changed little over the years. Points out the desire of this age group to have close identification with a peer group and its activities as they become less dependent on parents.
Follows the course of the Garonne River and its varying landscapes until it enters Toulouse. Shows how it flows through the village where Montesquieu was born, then reaches Bordeaux vineyards, then flows into the Atlantic.
George follows carefully planned preliminary operations in getting ready to type. Jane, who makes her preparations haphazardly, learns later to practice George's methods and is then ready to type with self-control and self-confidence.
Analyzes the elements of a good discussion; stresses the value of properly phrased questions that stimulate thought and lead to new avenues of discussion within the major question; and shows how discussion helps to clarify ideas and provide an interchange of information.
Continues the modeling begun in Sculpture I. Brings the portrait bust to life-size proportions by adding more clay to the armature. begins work on some of the details of form ending with a general likeness of the model. (KETC) Kinescope.
Describes and discusses the materials and tools used in modeling a portrait bust from clay. Shows the steps in applying clay to the armature. Illustrates how the sculptor proceeds to develop essential characteristics of the model's head. (KETC) Kinescope.
Explores the problem that young people have with alcoholism. Stimulates consideration of self-reliance, decision-making, and resistance to peer pressure as part of developing the resolve to live free of dependence on alcohol or other drugs.
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.
Describes the Canadian effort in World War II including news footage of Churchill addressing the Canadian Parliament, the building of the Alaska-Canada Highway, and Canadian tank and aircraft production.
Mose demonstrates the placement of features and the locating and working out of the especially prominent jaw muscles of the model. He explains the use of the death maskand tells stories about models and techniques.
Records the activities and sounds in a freight yard upon the arrival of a freight train. Portrays a turntable in operation, a steam locomotive in a roundhouse for servicing, a diesel engine moving through an automatic washer, and the reassembling of cars into a new train. A recording of the film-sound and music accompanies the film.
Seeks a point of view on the United States tariff policy through interviews with a subject expert and three opinion representatives. Explains popular misconceptions of the tariff problem and fundamental facts involved in this policy issue. Presents arguments for high tariff rates and protectionism for American industry as well as arguments for a liberalized tariff program designed to establish freer world trade. Discusses the alternative compromise of controlling American trade barriers on a selective basis so as to protect industries especially vulnerable to foreign competition. (T.W. Wilson Associates) Film.
An interpretive report on American schools which dramatizes the importance of the printed word in teaching and learning. Uses visual techniques--including a scene from Romeo and Juliet and a description of the workings of the cosmos--to portray many facets of the learning process as evidenced in both elementary and high school classrooms.
Dr. Ray Koppelman discusses the nucleus of the cell, explaining it's structural makeup, its function, and the ways in which it gives directives to the rest of the cell to carry out growth and reproductive functions.
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.
Teaching Film Custodians abridged classroom version of a Cavalcade of America television series episode, "The Ship That Shook the World" (season 3, episode 19), which first aired March 29th, 1955 on ABC-TV. When news is received that the Confederacy is converting the captured Union ship, Merrimac into an iron-armored ship to break the Union blockade of Southern ports, Captain John Ericsson, a naturalized citizen of Swiss birth, convinces a Navy Board to accept his specifications for a warship of revolutionary design, compared to a "cheesebox on a raft" by president Lincoln. On March 8, 1862, the Merrimac demolishes three conventional Union warships in Chesapeake Bay. The Monitor's shakedown cruise was interrupted for the history-making encounter with the Merrimac at Hampton Roads on March 9, 1862. The Monitor disables the Southern ironclad, forces it to withdraw never to fight again, and saves the blockade. The success of the Monitor revolutionizes naval warfare throughout the world.
Surveys selling as a career. Portrays a day in the life of a typical travelling salesman at home and on the job. Portrays various types of sales people who sell by personal contacts, mail, telephone, and radio, and describes the qualifications of a good salesman--honesty, accurate judgement, friendliness, and devotion to service.
A woman and her doctor discuss the facts and fallacies of menopause. She learns that with proper care it need not be the tragic experience some women have been led to expect.
An excerpt from the 1949 MGM documentary "A tale of the Navajos."
"It is the story of two boys and of the legends and sacred chants that led them on a great quest through this land of turquoise skies, this land of Eagle and Owl, of Raven and Coyote."
Demonstrates use of standard error, comparison of scores with test norms in interpretation of test scores, and use of percentile bands rather than points. | Presents a lecture by Dr. Scarvia B. Anderson, who demonstrates two important principles of test interpretation--(1) any test score is only an estimate of a student's ability, and (2) percentages are meaningful only if the characteristics of the group on which norms are based are known. Golf pro Ernie Pognotta helps to show similarities in basic principles of measurement in golf and in test scores. Dr. Anderson emphasizes that meaning comes from comparison in interpreting test scores.
Describes the main characteristics of impressionism and contrasts it with the art that prevailed in the era which preceded it. Stress is placed upon impressionism's major characteristics including elimination of details and use of color to produce optical effects in which colors are mixed by the eye. Special attention is given to coloring techniques used in painting such as use of colored dots rather than solid color areas.
Explains what good body posture is, and a man and a woman demonstrate exercises for improving muscle tone. The value of good shoulder position and a well arched foot is also described and illustrated.
Discusses abnormal shyness in children--its causes and how, through a greater understanding by parents and teachers, this problem may be dealt with. After portraying the lonely existence of a typical shy adult, presents the case histories of three children. Shows how a psychiatrist from the Child Guidance Clinic, studying their conditions, reveals the confidence-destroying demands of parents which predisposed the children to shyness; and how teacher, psychiatrist, and parents bring about a change in the children's attitudes.
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.
Alan wants to buy a lathe on the installment plan, Bonnie has to measure windows to see how many yards of material are needed for draperies, and Harry must figure out how many boxes of tile he will need to cover the kitchen floor. Pictures each as he solves his problem, and stresses the procedure--decide what data you need, obtain and organize the data, estimate the result, perform the needed operations, and check your answer.
Uses animation to compare written music symbols with written words and emphasizes that music is a written language with its own symbols. Introduces the five-line staff and the G clef as the basic structures upon which music is written. Shows how to develop pitch memory, introduces a basic rhythmic and tonal vocabulary, and combines these vocabularies into songs.
Focuses on an inner-city resident's attempts to maintain an old house on his own as a mechanism to review the problems of inner city housing. Explains that the cost of maintaining the home is beyond the inner-city dweller's means and that his landlord is often unwilling to contribute to this effort. Discusses, from a middle-class point of view, the exodus of the middle class to the suburbs and the failure of various programs and modern technology to provide enough inner-city low-income housing.
Discusses the importance of prenatal care of mothers and the eating of proper foods in helping children to develop good teeth. The structure of teeth, the progress of tooth formation, and the process of decay are explained by means of diagrams.
In this film the cinematographic space becomes itself an active element of the dance rather than being an area in which the dance takes place. The dancer shares with the camera and the cutting a collaborative responsibility for the movements themselves. Recommended for use only by groups interested in the cinematographical element of the dance.
Shows how to select correct rivet sets for stationary and portable squeezers and how to set up and use the stationary squeezer and the portable squeezer.
Indiana University President Herman B Wells urging people to become members of the campaign committee to support Indiana University. He explains that the support of great universities are the most lasting of all investments. "Universities have a life of their own, that maintains the validity and character of a gift. Whether the gift is for faculty, for scholarships, for research, or facilities, there remains always a reflection of the donor's interest."
In this film, impairment of skilled acts by disorders of coordination is demonstrated. Also shown are cases of paresis or paralysis of participating muscles; hemiplegia; ataxia in multiple sclerosis; parkinsonism with akinesia and rigidity, and apraxia. Film 6 in Columbia University educational films teaching collection.
Discusses the extension of the senses through a variety of techniques that enables man to study events of short duration; uses analysis of a lighting flash as an example. Questions posed about lightning include: duration of lightening flash, direction of travel, and cause of flicker. Timing devices used include several special photographic techniques, using moving and highspeed cameras, pen recorders, and the oscilloscope. The theory behind each device is explained.
Presents the spontaneous activities of four- and five-year-old children and what they find interesting in their world. Shows the four-year-olds mastering their familiar world through vigorous group play, sensory pleasure, make-believe, and use of materials and words. Presents five-year-olds as entering the more formalized, enlarging world of older children--playing games with simple rules, seeking facts, wondering, and using letters and numbers. Points out that teachers should follow the lead of the child's curiosity and should provide the child with activities that will prepare him for later instruction.
An elementary school orchestra, rehearsing for a school program, is having some difficulty in keeping the rhythm. The teacher illustrates familiar kinds of steady beat with a stethoscope, pulse rate, a clock, and a metronome. The drummer illustrates accented beats, and members of the orchestra play tunes in each rhythm. The rhythm of the piece they were practicing becomes clear, and the rehearsal proceeds.
Points out that there are possibly 30,000 solar systems which have conditions suitable for life. Illustrates how the spectroscope can determine the temperature, composition, and other information about distant stars by analyzing their light. Describes how mathematics and the various sciences help predict that life on other planets would be comparable to that found on earth.
Includes harbor activities at the ports of San Francisco, Puget Sound, San Diego, Los Angeles, and Portland. Also shows how Los Angeles, lacking a good natural harbor, built one by erecting huge breakwaters at nearby San Pedro.
Describes fusion of hydrogen nuclei as a source of solar energy, the chain reaction of uranium nuclei, and principles of critical mass relating to atomic bombs and nuclear power plants.
Discusses the history of baseball from its inception in 1833, showing outstanding players, changes in the game, and scenes from the first night game in history 1933.
By contrasting film footage showing Europe in ruins immediately following World War II and Europe's present prosperity, this first program lays the historical groundwork for the series. The first steps in this remarkable metamorphosis are traced from the initial effect of the Marshall Plan — from which grew the Organization for European Economic Cooperation (OEEC) — through the 1951 establishment of the European Coal and Steel Community.
A Teaching Film Custodians classroom film of excerpts from the 1944 Paramount Pictures feature film, "The Hitler Gang". This film traces the rise of Hitler and the growth of the Nazi movement in Germany. Shows the techniques of intimidation and mass psychology used on the German public, and briefly refers to the aggressions by Germany on neighboring countries. The film begins shortly after the Armistice in 1918, when Hitler, a corporal in the German Army, informs his commanding officer of a threatened revolt of the men in his barracks.
Contains aerial photography, animation, and charts to show methods used by Indianapolis to effect slum clearance. Pictures city officials as they cite the need for rebuilding slum areas and tells of the founding in 1945 of the Indianapolis Redevelopment Commission outlining plans for future development as well as picturing results of past achievements. Points out the cooperative efforts of Flanner House as residents are assisted in the building of new homes, summarizes the accomplishments of the Commission, and views future plans for slum clearance.
Teaching Film Custodians abridged classroom version of an episode of the DuPont sponsored Cavalcade of America television series, "In This Crisis" (season 1, episode 7), which aired December 24, 1953 on NBC-TV. This historical drama features John Honeyman, butcher and American patriot, who, pretending to be a Tory, spies on the Hessions to gain military intelligence, which informs Washington's decision to cross the Delaware and attack the Hessions in the December, 1776 battle at Trenton.
Shows the economic life and activities of the people in the Kunming area of Yunnan Province, at the end of the Burma Road. Pictures agriculture, transportation, conditions of life, and the methods of labor and industry of the people in this congested area. Contrasts the lot of the worker and peasant, who uses outmoded methods and gains a pitiful living, with the life of the people in the cosmopolitan center of Kunming.
Ever since the establishment of the European Coal and Steel Community, the progress of the Six, or "Little Europe" as the Community was called, had evoked mixed emotions. Many nations outside the Six —and even some within —felt skeptical about the project. Though the Initial vigor of the new movement was surprising, the defeat of the European Defense Community by the French Assembly seemed to confirm the sceptics' opinions. Yet the Six were undaunted by the setback, and, less than a year later, were busily planning further economic integration. Their intention to create, within the boundaries of the EuropeanCoal and Steel Community, a common market extending to all fields of commerce was viewed with deep misgivings by some other European nations. These "outside" nations felt that an open market within and a common tariff wall around the area involved might be a serious threat to existing trade patterns. Further, these antagonists felt that the concept posed a severe political threat to the solidarity of Europe and the western world. Using as its platform the existing Organization for European Economic Cooperation with its seventeen-country membership --which included the Six —the antagonists proposed to form a European Free Trade Area whose members would gradually eliminate existing trade barriers among themselves.
Follows the activities of a group of international Girl Scouts at a wilderness encampment in an Oregon national forest. Shows how they prepare for and take a five-day hike into the Three Sisters' Wilderness Area of Oregon without adult leaders. Quotations from their evaluation session are heard.
A young couple expects their first child. Shows onset of labor, the trip to the hospital, call to doctor, admission to maternity ward, routine preparations for delivery including instructions to mother, and normal birth of child. Stresses the assumption that fear stems from lack of knowledge.
[motion picture] A skilled potter demonstrates the shaping of various pieces of pottery on a potter's wheel. Shows each step in making a bowl and special steps in completing a low, flat plate and a pitcher.
A machine tool operator is made a group leader and his plant superintendent explains to him, through dramatized illustrations, the meaning of working with people instead of machines.
United States. War Department, The Signal Corps : produced by, Combat film units of Marines, Army Airforces, United States Navy
Summary:
Addressed to "the men and women of American Industry," the Film Communique series reports on military accomplishments to an audience of domestic workers producing materials for war. Composed of five short segments:
Cape Gloucester Jan 18 1944 Title card reads "1st Marine Division. Photo by Lt. R.S. Carter 7th Marines - leaving front - 23 day & nites in same clothes - fighting Japs - U.S.M.C." candid footage of battle-weary marines presented without commentary.
R.A.F. and 8th Air Force Report From Britain An aerial photographer follows daring French pilots of the R.A.F., flying at low altitude to evade radar detection, attacking a Nazi target in American-built A-20 bombers.
A 5th Air Force Report From New Guinea shows the ingenuity of ground crew men in repairing battle-damaged planes at an air depot in New Guinea. A Few Quick Facts animated sequence shows the distance a rifle bullet must travel before it reaches the Pacific battle lines to be fired at an enemy soldier.
A Fifth Army Report From The Beachhead shows the surprise invasion at Anzio, Italy, commentary describes "one of the boldest and toughest combined operations fought by the Fifth Army on the blood-soaked Italian boot." [see standalone short: http://collections.libraries.iub.edu/IULMIA/items/show/93]
United States Navy, Division of Personnel Supervision and Management, United States Navy Bureau of Aeronautics, Atlas Educational Film Company
Summary:
U.S. Navy training film intended to instruct managers how to maintain workplace discipline effectively. Dramatic scenarios contrast ineffective managerial styles with better approaches. Stresses the importance of disciplining a worker properly and giving orders clearly. Shows the results obtained in an office where emphasis is placed on gaining the workers' confidence. Narration states that "we are engaged in a war in which time is a weapon." Women clerical workers are shown gossiping until their boss enters the room, as the narrator points out that "hours are wasted in every day of the year" in many workplaces. The film shows that the remedy for this waste is to maintain discipline, and recommends that "a good supervisor steers a course between harshness and leniency."
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.
Shows how to check for play in the steering wheel; how to check the front end assembly for excessive play; how to make a rough test for wheel balance; how to correct wheel runout; how to make a toe-in test; and how to test springs, axles, and over-all backlash.
Shows that ratio expresses a relationship between two numbers. Points out that equal ratios form a proportion, which may be used in solving problems, stressing that the units must be the same in finding ratios between two numbers.
Shows how to use the gage manifold in building leak-testing pressures in a domestic refrigerator; how to test for sulphur dioxide and methyl chloride leaks; how to use the halide torch to locate freon leaks; and how to repair several types of leaks.
Stresses the importance of teeth in the digestive system, identifies and explains the purposes of the different teeth, and shows tooth development from infancy, the structure of teeth, how tooth decay starts, and the necessity for correct diet. A classroom film.