Educational film catalog (1936)

EDUCATIONAL FILM CATALOG 537.4-551.31 Story of electricity— Continued Depicts a few of the many episodic events which lead up to the use of magnetism in the production of electricity. Shows how the discoveries of Morse, Edison and others have contributed to our modern world jh-sh Guide 537.4 Lightning Modern Zeus. lOmin 16-sd-loan 35-sd-nf- loan 1933 GE 537.4 ALSO AVAILABLE FROM 16mm: A&B Col Fi "Demonstrates, w^ith artificial lightning produced by the 10,000,000-volt lightning generator in the General Electric High- voltage Laboratory at Pittsfleld, Mass., the destructive effect of natural lightning discharges, and shows the devices which have been built to protect electric power systems and service from lightning." Pro- ducer Jh-sh-adult 537.5 X-rays Exploring with x-rays. 40min 16-sd-loan 35-sd-nf-loan 1941 GE X-ray 537.5 ALSO AVAILABLE FROM 16mm: Cal GE Geo Made for the information and education of the general public, this film is designed to offer to the layman an idea of the scope of the use of x-rays and to inform him in an entertaining manner of its potentialities. The film is not regarded as a demonstration of x-ray procedures in their entirety nor as depicting in detail complete modern radiographic technique. Produced with the cooperation and approval of the American College of radiology Story of x-rays—from their discovery less than half a century ago to develop- ments that were announced publicly only a few days before movie cameras began to roll. Discovered in a quiet university laboratory late in the nineteenth century—produced with crude apparatus—experiments re- peated by scientists the world over—wel- comed by the doctor as an aid to medicine —new and more powerful apparatus help- ing x-rays to find new fields of usefulness— in medicine, in dentistry, veterinary medi- cine, in the food industries, to inspect heavy metals, in the research laboratory. Dr William D. Coolidge tells an ABC story of the physics of this paradoxical phenomena—what makes x-rays, and how, and how x-rays are used to find and fight disease. The film runs the gamut of indus- trial x-ray applications—from peanuts to pipelines, from candy to castings 537.8 Practical applications of electricity Microphone. 9min 16-si-sd-apply 35-si-sd- f-apply 1937 VL 537.8 "This is a very satisfactory film. It ex- plains clearly the principles underlying the structure of a simple microphone, and leads on to a description of the ribbon micro- phone as used in a film studio. The pho- tography is good. The teaching notes are full." British film inst. sh-c-adult Guide 541 Theoretical and physical chemistry Dr Langmuir—on surface chemistry. (Nobel * prize winners ser.) 30niin 16-sd-apply 40min 35-sd-f-apply 1940 BraF 541 ALSO AVAILABLE FROM 16mm: B&H Cine IdP Ohio Produced by American institute of mo- tion pictures "The first in a series of films of Nobel prize winners. . . Dr. Irving Langmuir, award winner in surface chemistry per- forms and discusses his experiments." Dis- tributor "An outstanding contribution as an aid to visual education. To see Dr. Langmuir perform his fascinating experiments and to hear his voice is an inspiring experience." J. A. Mattuck, Brooklyn Technical high school sh'C Guide 543 Analysis Properties of water. llmin 16-sd-$40 1941 Coronet 543 ALSO AVAILABLE FROM 16mm: Cal Geo III Ind SHS Wis Shows some of the chemical and physical properties of water by means of experi- ments and demonstrations. Composition of water is shown by electrolysis. Boiling under various pressures is shown. Solu- bility of solids, liquids and gases in water is demonstrated by several experiments. Saturated solutions, crystallization and super-saturation are also demonstrated. Energy changes of water to ice and to steam are shown; also Water as a stand- ard of weight and heat and volume "An excellent film for use in general science and chemistry classes at the junior high, senior high and college levels. Content is accurate, organization is good, and the various experiments are clearly pictured. Photography and sound are well above the average." Don White in Edu- cational screen jh-sh-c-trade Guide 550 GEOLOGY 551.3 Erosion Face of the earth. lOmin 16-sd-$35; renC $1.50 1940 DeVry 551.3 "How the face of the earth i.<5 changed by the action of wind, water, volcano, and earthquake." Producer sh-c Guide 551.31 Glaciers Birthplace of icebergs, llmin 16-sd-rent $5 TFC 551.31 ALSO AVAILABLE FROM 16mm: Ind Ohio Produced by 20th Century-Pox and is available only to schools. Rental is for minimum of 2 weeks "Excellent study of the largest tide- water glacier in the world which dis- charges into the Gulf of Alaska. The ice river is shown moving down to the sea where it collapses, discharging tremendous chunks of ice—icebergs—an awesome phenomenon. The two contradictory theories of ice- berg formation due respectively to weight and pressure of water—are clearlv pro- si - silent; sd - sound; f - inflammable; nf - safety; p - primary; el - elementary; jh - junior high; sh - senior high- c - college- trade • trade schools 67