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Uses animation to show the mechanism of meiosis, the chromosome halving cell division preceding the formation of sperm and egg cells and forming the basis of genetics.
Army Pictorial Service : produced by, Combat film units of Signal Corps, Marines, Army Airforces, United States Navy
Summary:
Wartime American audiences are shown the need for workers in the physically demanding metal forging and casting jobs, using scenes of combat from the invasion of France. The fictional American tank driver "Bill" is killed in combat in Normandy. His spirit returns to the factory where he used to work and finds that many of his former fellow foundry workers have left for higher paying, easier jobs. Bill's spirit dissuades a forge worker from leaving his job by describing the need for castings in the war effort. Bill's spirit insists “every single foundry in America and every single foundry worker counts. It's up to you. You can bring us victory."
Lists the postulates developed and used by Robert Koch to prove that a specific disease is caused by a specific microorganism. Presents some of the methods developed for protection against disease and against undesirable decomposition of foods. Through animation, explains how bacteria produce enzymes and toxic waste products which may cause disease and decomposition. Discusses immunity to disease, shows the industrial proparation of vaccines and antitoxins, indicates many of the diseases against which such products afford protection, refers to the use of antibiotics and sulfa drugs in the treatment of infection, and illustrates methods of controlling the spread of disease-causing microorganisms by such safeguards as water purification, milk pasteurization, and the use of ultra-violet radiation and chemical antiseptics
Using maps and animated diagrams, the importance of the Middle East in the world strategy of the Allied nations during World War II is shown. Austere images and narration inform the viewer of the strategic issues at stake: control of oil production, the region's role as a wall obstructing supply lines between Japan and Europe, the distance Allied supplies must travel to reach Egypt, Palestine, Iraq and Iran. Narration states "The Middle East stands between our enemies. While we hold it our enemies cannot win, and it will become a vital instrument in their defeat."
Over 5,000 miles of navigable waterways challenge man's ingenuity for construction of roadways in Louisiana. In the south, road builders have conquered the mire, building a highway across this watery wilderness by removing the "muck" and substituting a solid foundation of sand.
Uses stained cells, animation, and time-lapse cinephotomicrography of living cells to compare mitosis and meiosis. Shows onion root tip, whitefish embryo, salamander epidermal, and living Tradescantia staminal hair cells photographed in time-lapse photography to present the details of mitosis. Portrays the basic features of meiosis by using lily anther cells and living sperm cells of a grasshopper photographed by time-lapse photography. Animation sequences give a side-by-side comparison of the two processes and show how mitosis, meiosis, and fertilization fit into the life cycle of common organisms.
Use of a horizontal core, a split pattern, chaplets, and chaplet supports; how to gate a mold for rapid pouring of a thin casting; and how to clean a casting.
Shows what a gated pattern is and why it is used, how a match or follow board can simplify making a parting, how facing sand is prepared and used, and how and why some patterns are rapped.
Shows how to identify and use common bench molder's tools; how molding sand is prepared; how to face a pattern; how to ram and vent a mold; how to roll a drag; how to cut a sprue, runner, gates and riser; how to swab, rap, and draw a pattern; and, by animation, what takes place inside a mold during pouring.
Shows the difference between bench and floor molding, how to face a deep pattern, ram a drag and walk it off, clamp a mold, locate sprues and risers, and tuck the crossbars of a large cope.
Shows how to use a deep follow board; the technique of facing, ramming, and venting a deep green sand core; how to use a cheek in a three-part flask; and the purpose and method of step-gating.
United States. Office of the Coordinator of Inter-American Affairs
Summary:
"The title of this film is self-explanatory. It is especially adapted for students of archaeology and anthropology" (A List of U.S. War Information Films, Office of War Information, Bureau of Motion Pictures, April, 1943, 13)
Compares a hungry, active rat with a satiated, inactive rat. The hungry animal learns to get food by pressing a bar, while the satiated animal goes to sleep. To demonstrate that failure to learn is due to lack of motivation, a mild electric shock is supplied and the satiated animal becomes active and learns to strike a lever which turns off the shock. Shows the animal also learning to rotate a wheel, bite a rubber tube, and strike another animal to avoid electric shock.
Humorously using the arrogant and bumbling Mr. Proudfoot, this film serves a dual purpose of emphasizing the importance of obeying blackout hours, as well as easing the stress of the time period by encouraging laughter.
This film follows developments in music through human history supplemented by visuals of art and architecture of the period. Traces ancient civilization through to the 18th century with a heavy concentration on Europe.
Indiana University, Bloomington. Audio-Visual Center
Summary:
Features Fela Sowande of Nigeria, a leading African musicologist, composer, and organist, along with other Nigerian musicians demonstrating how contempory African music has mingled traditional African and Western idioms to create new forms. Explains that African music places a greater stress on melody rather than rhythm. The music, therefore, more closely resembles African dialects where the meaning is expressed by tonal inflection. Summarizes from this that the talking drum can be either a musical function or transmitter of messages.
Vern Reimer gives instruction, through demonstrations, on how to improve a drummers performance. He discusses the common mistakes made by student drummers and how to correct them. Targeted for the snare drum.
Presented as an authentic message from the Japanese people to the American people, this film is actually a fake newsreel designed to counter any views the American moviegoer might have had about the Japanese being a backwards nation. The film employs a white American in yellowface as the Japanese narrator who describes the modern, technological Japan capable of withstanding the American military's attacks. Uses captured feature films and documentaries from the Japanese, including a short sequence from the 1937 German/Japanese co-production "The Daughter of the Samurai" in a brief clip with the actress Setsuko Hara. The film concludes with a plea to buy U.S. war bonds.
Tells the life story of bats. Shows live bats and pictures a bat's voice of and oscillograph. Explains how bats navigate by echolocation or sonar. (WGBH-TV) Kinescope.
Portrays the role of Nanking in the history of China. Pictures its modern city life and its surroundings, including the Yangtze River, the mausoleum of Sun Yat-sen, ancient landmarks, and famous buildings.
United States. Office of War Information. Domestic Branch. Bureau of Motion Pictures
Summary:
Presents the wartime activities of four African American colleges--Tuskegee Institute in Alabama, Prairie View College in Texas, Howard University in Washington, D.C., and Hampton Institute in Virginia.
Shows interlocking of effects of the endocrine and nervous systems in man; illustrates the types of nerve cells and impulse transmission; explains the functions of the cortex, cerebellum, hypothalamic area, and medulla; describes the reflex arch and the peripheral, central, and automatic divisions. Discusses the diseases of the nervous system.
Depicts the daily life in a seacoast town in 1845 as it is seen by Chris, a boy of thirteen, who is completing school and must choose his future occupation. Pictures the work of the town tradesmen--the shipsmith, the ships' carver, the sailmaker, the rigger, the chandler, the countinghouse proprietor, and the shipbuilder. Describes seafaring life aboard a fishing boat, a coastal trading ship, and a whaling vessel. Depicts the home life of the young boy, as well as the more elegant home of a whaling captain.
Portrays life in the northeast corner of Scotland. The work of the fishermen and farmers and the industries and other activities of Aberdeen are described in some detail.
Portrays life of a typical farm family during the early 1800s in the Northeastern United States. Illustrates the self-sufficiency of these farmers and the importance to them of wood, water, and fertile soil. The reliance of the people on the services of the grist mill, blacksmith shop, general store, church, and school is shown. Describes the homes, types and numbers of animals, crops found on the farms, and the responsibilities of each member of the family. Through scenes of church and town meetings illustrates the concept that traditions of self-sufficient independence, desire for education, devotion to God and church, and love of self-government and freedom held by these farmers were carried to all parts of the 19th century America.
Shows how Canada's northwest airlines have conquered the almost impenetrable natural barriers of rivers and mountains on the Pacific coast. Reveals how air bases were built, supplied, and serviced during World War II. Shows the city of Edmonton as a gateway to the new North, to Russia, India, China, and the Orient.
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.
Uses live-action photography and animation to survey alpha, beta, and gamma radiation and their characteristics; the instruments used to measure these types of radiation; and the principles basic to the operation of the instruments. All radiation is divided into two broad areas, electromagnetic and corpuscular. Ionization caused by radiation is explained, and the principles governing the operation and use of instruments using ionization to detect radiation are discussed. These instruments include gold leaf electroscopes, ionization chambers, Geiger counters, and cloud chambers. The construction and operation of scintillation counters are examined.
Depicts the use of instruments employing radiation detectors in modern prospecting and through the use of animation, the underlying principles of radiation theory. Outlines atomic theory, defines radioactivity in terms of particle emission, and emission in terms of nuclear stability. Concludes with description of carbon 14 dating.
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.
Presents a recent history of the war savings program from its inception in July 1941 to January, 1943, with special emphasis on the activities of retail stores and the payroll savings plan.
Film features the Jeep audio visual unit, a vehicle equipped to provide complete sound and picture projection, regardless of road conditions or weather. Follows the vehicle as it used in an educational presentation.
Portrays to youth the wide variety of career opportunities in sales and merchandising occupations, how entry jobs fit into the career ladder, work settings, levels of occupations, and information about preparatory experience available through part-time work or a summer job in the retailing industry.
United States. Office of the Coordinator of Inter-American Affairs, The National Geographic Society
Summary:
Described as a film portraying "twenty types of orchids and other flora of South and Central America and the conditions under which they grow" (U.S. Government Films, U.S. Office of Education, 1954, 134), its underlying subject is enchantment with the projected image itself. The color palette of Kodachrome reversal film is on display, capturing the faces of young women posed with exotic tropical flowers. The natural riches of Latin America --cacao, mangoes, and coffee--are presented for the delectation of audiences to the north. One of many similarly-styled productions in the Office of the Coordinator of Inter-American Affairs catalog of short, documentary subjects, this film contributes to the war era campaign to sway popular opinion toward a spirit of allegiance and neighborly-ness between the nations of the Americas.
"Stridently anti-Japanese film that attempts to convey an understanding of Japanese life and philosophy so that the U.S. may more readily defeat its enemy. Depicts the Japanese as "primitive, murderous and fanatical." With many images of 1930s and 1940s Japan, and a portentious [sic] and highly negative narration by Joseph C. Grew, former U.S. ambassador to Japan."--Internet Archive.
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.
United States. Army Air Forces. First Motion Picture Unit
Summary:
This film outlines the convalescent training program for hospitalized U.S. airmen in World War II. It is designed to acquaint the convalescent with the program in which he will take part. Patients are shown in their beds, doing light calisthenics in the wards, exercising specific muscles using specially designed equipment, exercising and playing games out-of-doors, and engaging in hobbies and crafts. Other aspects of the program involve convalescents sharing wartime experiences with their fellow patients, teaching them new material and new skills, brushing up on their old skills acquired on duty, taking courses, and even earning degrees. The program also includes updates and discussions on the war, watching duty-related films, and engaging in purely social activities. The circulation and blood supply to various parts of the body are shown in animation.
This film outlines the convalescent training program for hospitalized U.S. airmen in World War II. It is designed to acquaint the convalescent with the program in which he will take part. Patients are shown in their beds, doing light calisthenics in the wards, exercising specific muscles using specially designed equipment, exercising and playing games out-of-doors, and engaging in hobbies and crafts. Other aspects of the program involve convalescents sharing wartime experiences with their fellow patients, teaching them new material and new skills, brushing up on their old skills acquired on duty, taking courses, and even earning degrees. The program also includes updates and discussions on the war, watching duty-related films, and engaging in purely social activities. The circulation and blood supply to various parts of the body are shown in animation.
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.
Discusses the individuality of artistic techniques. Follows Reginald Pollack as he attempts to find creative inspiration in nature. Shows the benefits of studying other artists' work.
Depicts events in the daily life of a Black family living on Palmour Street in Gainesville, Georgia. Illustrates basic concepts on mental health, and points out the influences, both negative and positive, that parents can have upon the mental and emotional development of their children.
United States. Office of the Coordinator of Inter-American Affairs, R.H. Macy and Company, Inc.
Summary:
A Coordinator of Inter-American Affairs film reporting on a marketplace of goods from Latin American nations held at Macy's Department store in New York City's Herald Square. Promoting more than commerce between nations, both the bazaar and the film are intended to reinforce alliances between all the nations of the Americas during wartime. Showing the flags of the nations represented, narration states "21 symbols of American solidarity, 21 Republics firmly consolidated, to make up our western hemisphere." Color photography accentuates the beauty and exoticism of the displays. As shoppers are shown admiring the displays of art and culture and purchasing from each nation's vendors, the audience is told "they bought the goods that Latin America has to sell, money from merchandise, goodwill build on good trade relations, every sale a guarantee that the Americas mean business. Business that means friendship in the western hemisphere."
United States. Office of War Information. Domestic Branch. Bureau of Motion Pictures
Summary:
"A quick overview of the weeks spent in learning to jump, tumble, and fall, in practice jumping from a tower and from a dummy plane, in packing the parachute one's life depends on, in learning to jump from a plane in half a second, to guide a chute by working the shroud cords, to land without splintering a leg, to disengage the chute and come up fighting."--War Films, Bulletin of the Extension Division, Indiana University, February, 1943.
Shows how flat and three-dimensional materials are framed by the passe partout method, using a transparent cover, a mat, a cardboard backing and binding tape. Demonstrates with animation and life photography the detailed step-by-step procedures for framing a picture and for mounting and framing a Cecropia moth. Includes suggestions for displaying and filling materials mounted with the passe partout method.
United States. Office of the Coordinator of Inter-American Affairs
Summary:
Using color photography, this travelogue transports viewers in the U.S. to the exotic locale of Nahuel Huapi National Park, in the Argentine Andes. Showing the stifling mid-summer heat of Buenos Aires in January, the narrator explains city-dwellers' desire to escape to the cool, clean air of the mountains. The camera follows a group of young Argentines as they hike in the mountains, play with a herd of dairy cows, pick wild strawberries and prepare their yerba mate. Striking landscape photography shows glaciers, waterfalls, and captures an avalanche as it occurs. As with all Coordinator of Inter-American Affairs films, affinity between the nations of the Americas is encouraged by presenting foreign places to domestic audiences in an appealing, humanizing light.
Asserts that although World War II is over, Americans still have responsibility for their government and veterans of the war. Features appearances by President Harry S. Truman, Secretary of the Treasury Fred M. Vinson, and Ted R. Gamble, national director of the War Finance Division.
Points out exterior structure and coloration of a living perch. Uses fresh specimens to show dissection techniques and reveal internal structures. The respiratory, digestive, excretory, and reproductive systems are removed and examined. the head is opened. The olfactory tract and brain are studied. Heart action is observed in a freshly killed specimen. The circulatory system is outlined. Further areas of investigation are suggested.
Shows how the Army Air Forces during World War II flew wounded men from Pacific battle areas to hospitals and home towns in the United States. Uses a mix of actuality footage and fictional reenactments to follow a soldier from being wounded in action, cared for by medics on the battlefield, undergoing surgery in a mobile hospital near the front lines, recuperating in Guam, being shipped back to the United States, and convalescing in hospital near the soldier's home town.
Shows the preparation and use of photographic slides in instruction. Suggests various sources of pictures and shows how pictures can be photographed by the teacher or copied from other printed matter. Includes and introduction to the Polaroid camera and film that can produce positive slides in three minutes. Recommends using slides for teaching and reporting to parent groups on children's activities and progress. Discusses the use of a tape recorded narration for some groups of slides.
Dramatization showing how Navy photographers and photographic interpreters provided the intelligence necessary to launch a strike against a Japanese airfield in the Solomon Islands. Ends with a statement by Commander R.S. Quackenbush, Jr. urging viewers to purchase war bonds.
Duroc Record Association, Frank Oberkoetter Studios
Summary:
Addressed to members of 4-H or FFA clubs interested in learning to raise pigs, stating "thousands of boys and girls choose swine for their livestock project work." Provides instruction and guidance for every aspect of the project, from purchasing, showing at the county fair, to reaping profits in the fall. "[P]oints covered include: buying a bred gilt; McLean County sanitation system; importance of accurate record keeping; equipment needed; feeding methods; value of clean pasture; disease prevention; showing at the fair; and the value of pig project work. Suggested for agricultural classes and for 4-H club activities" (University of Michigan Bureau of Visual Education Extension Service, Instructional Motion Pictures, 1940-1941, 8). Suggests that the profitability of such projects will help young people start their own farms. The film shows a young farm couple tending hogs while narration states "if a little boy blesses their home you bet ten to one that he too will get the chance to have the valuable experience of pig project work, just like dad."
"Canada's place in the strategy of Pacific warfare is the subject of this wartime film. Convoys, carrying the sinews of war, steam out from her ports, while along her western coast lookouts and patrol boats keep constant vigil. The close cooperation between the United States and Canada in the Pacific is illustrated."--NFB website.
Describes briefly the arduous processes by which the early settlers ground corn in their homes and focuses on the construction and operation of large water-powered mills. Shows farmers bringing their sacks of corn by horseback to the miller who, for a portion of the flour, grinds the grain to the desired texture, while the farmers catch up on the latest news. Explains the miller's activities as he goes through each step of the grinding process.
Illustrates how linen, wool, and linsey-woolsey fabrics were made from material found or grown on the farm; follows the processing of flax into linen thread from harvesting to the actual spinning of the thread; pictures the shearing of sheep, the cleaning and carding of fleece, and the spinning of woolen thread; demonstrates the weaving and dyeing of cloth; and discusses the uses of wool, linen, and linsey-woolsey cloth.
Dramatized cases of five different workers, unsatisfactory in particular jobs, who are reassigned to other jobs more suitable to their abilities and capacities.
Tells the story of Bob Carter's introduction to a research job in a large chemical company. Both his chemistry professor and his new laboratory supervisor stress the importance of good safety practices on the job. Pictures many safety devices in use in the chemical industry. Selected scenes filmed at Eli Lilly and Company, Indianapolis.
A plant supervisor talks to his son, who has built a boat in the basement too large to go through the door, about planning a job in advance; and recounts several illustrative experiences at the plant.
There are many partnerships in nature where two plants may help each other, or a plant and animal may mutually benefit one another, or where two animals may contribute to each other’s welfare. You will see on this program an example of each. The lichen, a common plant, looks like one individual, but really consists of two kinds of plants living together. You will see this story through the microscope. And you will see the story of cross-pollination, in which bees and insects take nectar from the flowers and in so doing transfer pollen from one flower to another. Ever look inside a wood eating termite? You will and with a microscope to see a story of mutual benefit. Inside the termite lives a host of one-celled animals which assist the termite in digesting the cellulose in the wood he consumes. (WGBH-TV) Kinescope.
Asks questions about food sources for plants, and uses coleus to illustrate foodmaking in green plants. Uses cinephotomicrography and animation to show the process of photosynthesis. The phenomenon of the conversion of light energy to chemical energy is noted. Carnivores, parasites and saprophytes are each defined and illustrated. Points out that all animals depend upon some form of plant life for food.
Stresses the importance of appearance to a speaker's self-confidence and good audience reaction. Uses cartoon characters to show types of poor posture. A man preparing his first speech demonstrates balance and proper techniques of posture and movement. Reviews the suggestions made.
Contrasts the crowded play conditions in most cities with those of rural areas, and discusses what the Play Schools Association is doing to remedy the urban problem. Shows typical Play School settings in public schools, a settlement, and a housing project, where children from five through thirteen years, of all races and creeds, are provided with a wide range of enriching play activities for their after-school hours in winter and all day during summer vacations.
Examines four different approaches to working with clay and ceramics. Shows scenes of ceramists at work to illustrate that the current approach to ceramics is characterized by change and creativity, allowing the ceramist to create pieces that are traditional and functional or purely artistic. Notes that the stimulus for shaping clay upon the wheel or molding clay with slabs can come from the artist's environment or his imagination. Explains that designs applied to ceramic pieces prior to firing can alter their basic forms and that experimenting with the ingredients in glazes and methods of glaze application allow for varying results.
The Phillips "66" championship team demonstrates basketball fundamentals. Slow motion and stop motion photography are used frequently to show techniques as follow-through, pivoting, passing drill, tipping drill, defensive, offensive breaks, and the various shots.
Shows how to make a template for the job; how to install knives in the spindle; how to use the template when smoothing squared edges; how to set up equipment for shaping a curved edge; and how to shape a curved edge in more than one cut.
Discusses the human endocrine system, including the better-known glands and how they affect the body. Highlights the difficulties involved in studying the endocrine system in humans and describes modern research methods using invertebrates.
Presents a profile of a winner of an Indianapolis "500" race, with highlights of the 1970 race. Interwoven are sequences stressing safe driving on and off the track.
In this program the audience hears a review and summary of all the information on the physical and chemical nature of living material discussed in previous programs. Dr. Roney uses sketch pad diagrams and models to picture the structure and organizations of living material, as it is understood today.
Vignettes of everyday life and events in two indigenous Mexican villages provide breadth of subject-matter for vocabulary exercise. Sentences of the Spanish narration are nearly all declarative, and in the present indicative. For second semester Spanish students.
Illustrates and explains the chief properties of the important quadrilaterals such as the parallelogram, rectangle, rhombus, square, trapezoid, and trapezium.
Indicates the preparation necessary for entrance into radio work, stressing a strong foundation in science and mathematics. The development of personality and a cultural background is stressed. Gives an overview of radio and its present importance and the application of radio principles to public address systems, sound reproduction, and television.
"Includes a report from Britain showing the RAF and the 8th Air Force on a hedgehopping bomber flight over France and Germany, and the 5th Air Force report from New Guinea." ("News and Notes," Educational Screen, June, 1944, 266.) Shows a film clip claiming to be an "Official German Newsreel," with footage of American planes that have been shot down and have crashed onto German soil. Shows how Germans salvage metal from these American aircraft to use for their own war effort and explains that each crashed plane is indicative of loss of soldiers' lives.
"Includes a report from Britain showing the RAF and the 8th Air Force on a hedgehopping bomber flight over France and Germany, and the 5th Air Force report from New Guinea." ("News and Notes," Educational Screen, June, 1944, 266.) Shows a film clip claiming to be an "Official German Newsreel," with footage of American planes that have been shot down and have crashed onto German soil. Shows how Germans salvage metal from these American aircraft to use for their own war effort and explains that each crashed plane is indicative of loss of soldiers' lives. Ends with a message from General Eisenhower asking the American people to support the Fifth War Loan Drive.
Introduces Rafael Mendez, who plays several selections on his trumpet and discusses his instrument and playing technique. Includes an orchestral accompaniment. Ends with Mendez and his twin sons playing an original composition.
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.
Uses simple terms and illustrations to explain and discuss the water cycle, evaporation, and condensation. Shows the phenomenon of a rainbow and the effects of wind, cloud formations, and sunshine on evaporation.
Uses such situations as computing a baseball player's batting average and adapting a recipe to illustrate the principles and uses of ratio and proportion. Explains the terms used, the difference between ratio and proportion, and the application of the principles to gears.
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.
Presents physical education as an essential part of the modern school curriculum. John Glenn explains why the astronauts need to be ready physically and mentally for space travel. Describes how body motor skills are developed in early grades by tumbling, rope climbing, and rhythms. Pictures older students playing team games, as basketball and volleyball. Stresses the need for well-planned activities, accurate records, and competent, well-trained teachers.
Presents the general aims of the civilian defense program during World War II. Describes the training and duties of the air raid warden. Closes with a proclamation by Governor Schricker.
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.
Shows types of reamers; how to check the size of reamers; and how to ream straight holes with straight-fluted helical-fluted, and adjustable-blade reamers.
Shows how to check, recondition, and repair the cutter and adjust the knife clips and bar mechanism; how to remove and replace worn sections in the sickle and sharpen the sickle section; how to repair, sharpen, replace, and straighten the guard unit, replace wearing plates, and adjust the cutter bar to the proper lead; and how to adjust the sickle for register.
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.
Pictures and describes the regional campuses of Indiana University, pointing out their function and relationship to the University as a whole. Shows activities at the campuses, both inside the classroom and out. Emphasizes the educational opportunities offered the citizens of Indiana through the regional campuses.
Shows how pigeons are taught abnormal behavior patterns by means of selective reinforcement of response and how the removal of the reinforcement causes the gradual extinguishing of the learned response. Derives from the experiments basic principles about learned behavior which are applicable in the training of children.
Shows how behavior that is reinforced does get learned while non-reinforced behavior is extinguished.
