Educational film catalog (1936)

EDUCATIONAL FILM CATALOG 621.3-621.32 Big deeds— Continued X-ray. Broadcasting first television drama. Testing effects of lightning and other electrical experiments." California sh-trade Heat and light from electricity. 15min 16- si-$24 1930 Eastman 621.3 '"This film, together with 'Water Power," [Class 621.312] 'Chemical Effects of Electricity,' iclass 621.35] 'Magnetic Effects of Electricity,' tclass 538] and 'Induced Currents,' iclass 621.31] helps to impart a working knowledge of the principles of electricity." Wisconsin "Clearly explains series and parallel circuits—Ohm's Law—manufacture and use of conductors, insulators, and lamps—arc furnaces and heating equipment." Pro- ducer Jh-sh-c Guide 621.31 Generation of electicity Busybody. 16-si-loan 35-si-f-nf-loan Gen- eral electric 621.31 "Departs from a conventional presenta- tion by animating the 175 parts which are comprised in the smallest motor. After this little machine has built itself on the screen, a number of its practical applica- tions are illustrated." Colorado Induced currents. ISmin 16-si-$24 1930 Eastman 621.31 "Through the combination of photog- raphy and ^aphic animation, this film helps materially in teaching the difficult topics of armatures, commutators, collec- tor rings, telephones, and mutual and self- induction." Wisconsin Jh-sh-c Guide Power transformers. 2R 16-si-loan 35-si- f-nf-loan General electric 621.31 "Thirty-five years of engineering and manufacturing in the building of trans- formers pass in review in this picture, which contrasts the earliest transformer, weighing 20 pounds, with the latest, which weighs 100 tons." Kansas 621.312 Central stations Conowingo. 3R 16-si-loan 35-si-nf-loan prior 1927 Stone & Webster 621.312 "The Conowingo hydroelectric develop- ment . . . located on the Susquehanna River . . . Acres of river bed made dry, steam shovels working many feet below the bed of the river, concrete being placed to build the power house and dam, a mile- long steel bridge blown up with dynamite, great pieces of machinery weighing hun- dreds of tons lowered into position . . . While the work is in full swing a great flood sweeps down the river and the fight to keep the rushing waters back adds in- terest to the drama." Producer sh-c Electric pow^er in the southern Appala- chians. ISmin 16-si-$24 1929 Eastman 621.312 "Characteristic progress in industry and the changes in living conditions, resulting from the development of hydro-electric power in any vicinity, are exemplified in this film." Wisconsin Guide Energy and work. (General science ser.) 12min 16-si-$24 35-si-nf-$80 prior 1927 DeVry 621.312 By Morris Meister, head of science de- partment, Haaren high school. New York city A composite picture of an electric power plant. Transformation of power from sun to coal is traced and also from coal to heat, heat to steam, steam to electricity and the electric current until expressed, thru resistance, in incandescence. Also pictures a hydroelectric plant. The prin- ciples of action and reaction are Illustrated by the engine in the steam plant which is of the turbine type Jh-sh Guide From coal to electricity. 2R 16-si-loan 35-si-nf-loan prior 1927 Stone & Webster 621.312 "How in a power plant the energy of the sun, locked up in coal, is changed to electrical energy . . . Shows the succession of steps by which coal becomes heat, heat generates steam, steam causes machines to move, and the machines produce elec- tricity . . . Employs the arts of the screen to take the observer not merely through the station but inside each machine and piece of apparatus to view what happens there." Producer jh-sh-c Hydroelectric power. IR 16-si-loan 35-si- f-nf-loan General electric 621.312 "Shows the world's largest automatical- ly controlled hydroelectric generating sta- tion, located on the Ohio River at Louis- ville, Ky." Producer Nature's frozen credits. 3R 16-si-loan 35- si-nf-loan prior 1927 Stone & Web- ster 621.312 "Filmed in . . . the Sierra Nevada Mountains . . . The construction of a great hydroelectric plant on the turbulent Feather River, famed for its scenic beauty. The picture illustrates in a non-technical way the various steps of developing the project, from the initial surveys to plac- ing the machinery in oi)eratlon." Producer Water power. 30min 35-si-nf-loan prior 1927 Bur. of mines 621.312 Made in cooperation with the Westing- house electric & manufacturing company "Shows ancient methods of utilizing energy of falling water. Animated draw- ings picture power of Niagara changed into electrical energy. Shows uses of elec- tricity in industry and in homes and generation of electricity from melting snow in mountains, brooks, and streams." Pro- ducer Water power. 15min 16-si-$24 1928 East- man 621.312 "Niagara Falls reveals energy of falling water, a Pelton wheel, low head water power installations, animations explain turbine, various uses of electricity." Ohio Jh-sh-c Guide 621.32 Electric lighting Illumination. 15min 16-si-$24 1931 East- man 621.32 "Shows some of the principal methods of lighting, illustrates measurement of illumi- nation by the use of the photometer and si-silent; sd • sound; f - inflammable; nl-safety; el - elementary; Jh - Junior high; sh - senior high; c - college 41