Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 78
wing film channelsprocket wheel andshuttle movement.The adjustable shut-ter may be set forfrom 25% to 50%exposure. Under or-dinary day light con-ditions and ordinaryspeed, 37H% (abouttaoth second) is foundto be the correct timeof exposure; fig. 3,894,left side showing ar-rangement of take… … of punching hole in center. Ques. Can a motion picture machine be used as acamera? Ans. Yes. Pictures may be taken by constructing a light tight box for themotion head o£Ythe machine/ Such an arrangement !S, however, ratherbulky in comparison to a regular motion picture camera. GAS ENGINE IGNITION…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
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