Educational film guide (1945)

678-681.4 EDUCATIONAL FILM 1945 EDITION GUIDE RUBBER GOES SYNTHETIC — Continued "Such items as the making of the mysterious barrage balloon which floats in the air and guards essential war industries, the inflatable boats that rescue flyers forced down at sea, the life-saving suits that help rescue men of the merchant marine when boats are torpedoed, self-sealing gasoline tanks and many others are included in this eye-opening, educational movie." Library journal Geo $1 Roch loan Heb 50c YMCA loan STORY OF CHARLES GOODYEAR. (Fools who made history ser.) lO^min 16-sd-apply TFC 678 jh-sh-c-adult A Columbia production. Available only to schools "A dramatization of Charles Goodyear's struggle to make India rubber usable for commercial purposes. Concluding scenes show Daniel Webster defending in a court of law Goodyear's claim to the patents. "The picture contains sufficient material dealing with Goodyear's research and experiments to make it interesting for courses in junior and senior high school science. Recommended also for social science groups concerned with rubber in industry, and the relation of inventions to world progress. Excellent for chemistry classes." Advisory committee "Drinking scenes make it undesirable for school distribution. Character portrayal poor. . . Lots of irrelevant material. Good commen tator. ' ' Collaborator Above statement "isn't true. All these short TFC biographies are excellent. This is very popular scene". Collaborator AMNH $1.50 Minn $1 Geo $2 Ohio Ind $1.25 Tenn $2 SYNTHETIC RUBBER. 21min 16-sd-loan 1944 Goodyear 678 "Good for a specific article. Photography good. Good for teachers of arts and crafts." Collaborator jh -sh-c-trade-adult lien is "In which is traced the history of the development of the first rubber-like material in 1892 to present-day production methods in synthetic rubber plants. Processes involved in the transition of chemicals to rubber described step-by-step. "Other possible sources of rubber, such as milkweed, the guayule plant, and Russian dandelion, are discussed. "The picture also describes the action of self-sealing gasoline tanks which were made possible by synthetic rubber." Educational screen "Very good for classes studying science, natural resources or modern history." Collaborator Chicago loan Ind 50c Geo $1 Ken 55c 111 75c WashS 50c 680 Handicraft CRITTERS. lOmin 16-si-$21; rent $1.50 1941 Gut 680 p-el-Jh Shows how figures of people, animals, etc. can be made from such materials as pipe cleaners, spools, lollipop sticks, paper, feathers, etc. Rhyming titles explain the action NatFS $1.50 VES $1.50 TOYS FROM ODDS AND ENDS. (Handicraft teaching films ser.) 15-10min 16-si-sd-$30$40; rent $1.50-$2 1941 BraF 680 Guide Produced in cooperation with the Universal school of handicrafts. There is a brief display of several articles made from odds and ends of cloth, wool, rubber, yarn, etc. and then a detailed demonstration of the making of a small woolly dog is given B&H si-sd-$30-$40: rent $1.50-$2 Cine si-sd IdP sd-$1.50 Ind sd-$1.25 VES si-sd-$1.50-$2 681 Clocks and watches 681 TIME. 20min 16-sd-loan 1944 Mod el-jh-sh Guide Produced by Audio productions and sponsored by the Elgin national watch company. Contains no advertising An interesting film of the history of telling time. Shows some of the methods used from earliest times to present day small and efficient watches There is an explanation of the difference between sun time and star time Rarig VE loan Eng ModS loan 681.4 Optical instruments. Lenses CENTERING, EDGE GRINDING AND BEVELING. (Optical craftsmanship ser.) 3R 16-sd$33.78 1943 Castle 681.4 sh-c-trade-adult Produced for the US Office of education Polished lenses centered visually by colli mator device, edge-ground to dimension, checked with micrometer and ring gauge, then given 45° bevel to a .040" edge thickness Operation of multiple spindle production machines, centering by reflection B&H $2 Rice Calhoun SuF Dav TexVE Fi VAF $33.78 Nay VES EYES OF SCIENCE. 45min 16-si-loan 1930 * Bausch & Lomb 681.4 jh-sh-c Guide "Galileo with his early telescope; Leeuwenhoek and his simple microscope; the arrangement of lenses and tubes which have given the scientists the super-eye; the spectroscope; ophthalmoscope; binoculars; motion picture machines." Colorado ft FINE GRINDING. (Optical craftsmanship ser.) * Bausch & Lomb 681.4 sh-c-trade-adult Produced for the US Office of education Large blocked concave lenses subjected to a No. 1200 and No. 1600 abrasive on grinding machine, to accuracy beyond mechanical measurement. Adjustment of grinding machine, inspection for defects. Prime need for cleanliness B&H $1.50 Rice Calhoun SuF Dav TexVE Fi VAF $22.11 Nay VES LENSES. 15min 16-si-$24 1931 EBF 681.4 jh-sh-c Guide Emphasizes those phases of lens refraction admirably shown by animation: action of a converging lens, real and virtual images, changes of magnification; effect of diverging lens and formation of the virtual image; construction and explanation of acromatic lenses ft OPTICAL INSTRUMENTS. 15min 16-si-$24 1931 EBF 681.4 jh-sh-c Guide Utilizes the principles of reflection and refraction and applies them to optical devices. The film units are Mirrors; The eye and spectacle lenses; The camera; Stereopticon 332