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How to select the correct arbor; mount the work head; adjust the work head for clearance settings; and set up for sharpening the outside diameter, corner, and face.
Portrays the frequency of a mutant in the gene pool as reaching a state of equilibrium when, per generation, its origination by mutation equals its elimination by genetic death. Discusses genetic d...
Discusses the role of heredity and environment in determining the sex of various organisms. Indicates that in some organisms it is the environment in which a given genotype functions that determin...
Portrays sex as a polygenic trait which may be considered to be determined by the balance of genes on different chromosomes. This view is substantiated by the work of R. Goldschmidt on the gypsy mo...
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, sett...
Division of Visual Aids, U.S. Office of Education; Federal Security Agency; Ray-Bell Films, Inc.
Summary:
Shows how to assemble broaching inserts in right- and left-hand toolholders, how to mount and adjust toolholders in the double ram; how to mount and adjust the work fixtures; how to set trip dogs f...
Shows various types of micrometers; how to use a micrometer, read the barrel and thimble scales, check the accuracy of readings, and take care of the instrument.
The third film in a five-film series, this film illustrates how pre-school children use the forms and arrangements of the words of their language to convey meaning. This is the grammar of the lang...
University Films; J. D. Watson; Irwin H. Herskowitz
Summary:
Describes RNA and DNA which are favored as the carriers of genetic information. Presents DNA molecules as shown in the electron microscope and describes the polymeric nature of the DNA molecule and...
Describes the ways in which genes produce phenotypic differences by acting very early in embryonic development. Shows that this action may take place at a distance through chemical messengers (pitu...
Portrays the role of developmental genetics in dealing with ways phenotypes come into being through the action of genes. Presents a complete discussion of the Creeper domestic fowl--its genetic bas...
Shows the parts of a single ram vertical machine; how to interpret the blueprint of a broaching tool; how to install broaching inserts for straddle broaching; how to mount the toolholder with its a...
Pictures reproductive isolation originating through interspecific hybridization, via amphyploidy (radish-cabbage, new world cottons, goatsbeard species), and by means of introgression (tobacco, ros...
Demonstrates independent segregation by different pairs of genes using Mendel's data. Emphasizes the chromosomal activities during meiosis which are responsible for independent segregation. Descri...
Discusses the effect of various levels of inbreeding (self-fertilization, sib matings, half-sib matings, cousin marriages) upon making heterozygous genes homozygous with the consequent loss of vigo...
Portrays the frequency of mutants in the population gene pool as dependent upon their rate of origination and selection coefficient. Discusses the population fate of dominant lethals (retinoblasto...
Demonstrates through slow motion and natural photography the positions and movements of the "Hoosier Promenade." Opens with a group of eight dancers performing the introduction to the dance. Shows ...
Uses animation, slow motion, and real photography to demonstrate the positions and movements of dancers and dancing couples in the "grapevine twist." Shows each part of the dance separately and the...
Teaches the square dance figure "Take a Little Peek," with synchronous music and action. Presents live and animated demonstrations of the dance at regular speed and in slow motion, and explains the...
Demonstrates through slow motion and natural photography the positions and movements of the "Texas Star." Opens with a group of eight dancers performing the introduction to the dance. Shows each pa...
Demonstrates various methods of preparing materials to be used on different types of still projectors. Explains that instructional materials may be prepared for projection by utilizing their qualit...
**WARNING: CONTAINS GRAPHIC IMAGES OF LAB TEST ANIMALS** Illustrates the basic techniques of obtaining germfree environment, germfree animals, and methods of germfree miantenance. Demonstrates the...
Describes the states of Texas, Louisiana, Mississippi, Alabama, and Florida as comprising the Gulf Coast region of the United States. Picture crops in Florida and explains that these crops are gro...
Division of Visual Aids, U.S. Office of Education (Producer); Federal Security Agency (Producer); Ray-Bell Films, Inc. (Producer)
Summary:
Explains why accessories are used with gage blocks; shows how to inspect a plug gage, an adjustable snap gage, a profile gage, a ring gage, and a screwthread pitch; and shows how to build a height ...
Teaching Film Custodians abridged classroom version of a Cavalcade of America television episode, "The Last Will of Daniel Webster" (season 2, episode 8), which first aired November 14th, 1953 on A...
Comprised of three short films by Walton Films, "The Reign of King George VI," "Elizabeth - Our Queen," and "Trooping the Colour Ceremony," and one film by Peak Film Productions, "London," about En...
Shows the geological influence on local distribution of plants in the non-glaciated area of southwestern Wisconsin. Highlights many soil conditions and the variety of plants in their region. Catego...
Do you like to live in a city? Or would you prefer to move to the suburbs and escape slums, juvenile delinquency traffic jams? Many people are moving to suburbs, and urban areas are growing until, ...
Illustrates abnormalities in gait caused by pain, structural defects and deformities, neuromuscular disorders, and a combination of these causes. Details technical symptoms of the gait and posture ...
Demonstrates the use of high contrast photography for the preparation of 2" x 2" and 3 1/4" x 4" negative and positive slides, transparencies, and overlays for overhead projectors and for printing ...
Demonstrates the production and utilization of seven types of 3 1/4" x 4" handmade slides by teachers and pupils in various school situations. Stresses sources of picture material and special produ...
Shows the many types of letters and lettering devices which may be used to produce effective printing on such materials as charts, posters, and bulletin boards. Illustrates the use of rubber stamp...
Uses the General Assembly of Indiana to portray a state legislature in action as it passes a bill through the various steps to become a law. Includes animated sequences to chart the steps in the pr...
Reviews the contributions of Mendel, the Hertwigs, and Miescher to our understanding of modern genetics. Discusses chromosome chemistry in terms of the cytological distribution of nucleic acids, t...
Shows how freedom was prized during World War II despite its high cost in desolation and hunger and how more fortunate peoples helped liberate Europe by fighting the threat of famine.
World War II film showing the horror of the Pacific war with extensive coverage of the care and treatment of the wounded. Created in support of the 7th War Loan drive, the film encourages the gener...
Part three in the "Artists at Work" series, this film spotlights three east coast painters, working in their studios.
Jack Tworkov, born in Poland in 1900, and a teacher for 15 years, was recently ...
"Grierson had always admired the documentary work of American filmmaker Robert Flaherty (Nanook of the North) and hired him to make Industrial Britain, though he and his staff ultimately had to com...
Presents a simple introduction to the study of earth materials. Shows in step-by-step sequences how the land evolved from the great mass of rock and water that was the early planet. Illustrates how...
A portrait of the renowned American photographer. Adams reflects on his life, demonstrates his darkroom techniques, talks about the development of photography as an art form, and is shown teaching ...
This film follows the Chinese-American artist, Dong Kingman, as he carries a single painting through various stages to its completion. It introduces Kingman's finished work and explores the broader...
Documentary on modern applications of atomic energy. Explains, using cartoons, the chain reaction and heat production resulting from the fission of the atom. Shows the use of this energy in agricul...
Explains the concept of light years to address the distance between galaxies. Addresses the existence of millions of galaxies like the Milky Way, featuring photographs of some of them, along with ...
Describes the classification of the true fungi. Illustrates examples and characteristics of the phycomycetes and illustrates their life cycle. Discusses the slime molds. Shows several methods of co...
