Visual Education (Jan 1923-Dec 1924)

February, 19 2 3 59 salesman has seen our film, 'Ten Pounds to the Bushel,' he has followed every step of the milling process in proper sequence. He comes away with a clear, coherent mental picture. "The reel begins at the very beginning — the growing oats out in the field. Then it shows the careful process of selection by which only grain of the finest quality is taken ; follows the entire process of manufacture, placing special emphasis upon the most important steps ; pictures the boxing of the finished product, and carries the story right down to the point where the boxes are packed in the cars for shipment. Animated drawings, which constitute perhaps one-half of the entire footage, make it possible to follow operations that would not even be visible to a man watching the actual machine at work. "All in all," concludes Mr. Douglas, "it is our experience that, from a sales standpoint, the instruction a salesman receives from seeing this film is a great deal more valuable than the instruction he would receive from seeing the same machines in operation. Add to this the greater economy, in both time and dollars, and you have an unbeatable argument for the use of motion pictures in salesman-training." The Quaker Oats Company's production program speaks for itself when it comes to answering the question, "Do industrial films pay?" The year 1921 saw 8,000 feet of film produced by the Feed Department, to supplement an earlier 2,000 feet; 1922 saw the production of 3,000 feet by the Poultry Department under the supervision of Dr. O. C. Kent, 1,000 feet by the Export Department, and 1,000 feet by the Cereal Sales Department. The grand total is fifteen reels. To quote Professor McLean once more : "We believe in the film as an ideal medium for conveying a certain amount of information to all the people in a way that will give them clear, vivid and accurate impressions in the shortest possible time. That the motion picture is destined to become a mighty factor in general education goes without saying." agreeable streaks on the screen. In fact, they are sometimes seen to some extent when the shutter is not adjusted to move at exactly the right time. -F. R. MOULT ON. Aii.l 4..t4*.*.A. Projection Queries & Answers Readers are invited to address queries on practical projection matters to Projection Department, care of VISUAL EDUCATION Can a motion-picture projector be operated on storage batteries? — N. C. G., Arlington Heights, III. The answer is "yes" if you have the proper layout. But if you connect a machine constructed for use on a 110-volt circuit with storage batteries, you will be disappointed. The simplest case will be considered first. Suppose only a single 6-volt storage cell is available. Then it will be necessary to run the projector by hand. Use a 6-volt 72-watt lamp, and you will have enough light for a 6x8 picture and the battery will provide the necessary current three to four hours. If more batteries are available, connect six 6-volt cells in series. They will run a 30-volt motor and a 30-volt 250watt lamp for three or four hours, and the light will be sufficient to illuminate brilliantly a 9x12 screen. In a word, the answer to the query is that storage batteries may be used for running the projector and furnishing it light provided the motor and the lamp are adapted to the batteries. If in doubt, consult the manufacturers of your projector. * * * What is the purpose of the rotating shutter? — D. G. S., Hammond, Ind. The purpose of the rotating shutter is to cut off the light from the screen while the picture is being moved. You know, of course, that the picture is brought before the lens and is projected on the screen for about threesixty-fourths of a second. It is then moved on and succeeded by a second one, and so on through the whole film. That is, a "moving" picture is in reality a very rapid succession of stationary pictures. The shutter cuts off the light and leaves the screen dark while one picture is moving off and another is moving on. If it were not for the shutter the motion would produce very dis N. E. A. Programs (Continued from page 56) MEETINGS OF OTHER AFFILIATED GROUPS The Department of Vocational Education and Practical Arts will hold two meetings, Monday and Tuesday in the Ball Room of the Hollenden Hotel. The Educational Research Association will hold two meetings in the Ball Room of the Hollenden Hotel. The topic on Wednesday afternoon will be Research Applied to Problems of Instruction," and on Thursday afternoon Research Applied to Administrative Problems." The National Council of Primary Education will hold its annual meeting Thursday at 2:15 P. M., in the Hollenden Hotel. The topic for discussion will be, "Promotion Requirements." The National Council of State Departments of Education will meet Thursday morning and afternoon in the Hotel Statler. The National Society for the Study of Education will hold two meetings in the Ball Room of the Cleveland Hotel, on Saturday and Tuesday evenings, at 8 o'clock. The discussion will center around Part I of the 1923 YearbookEnglish Composition : Its Aims, Methods and Measurement. Among the speakers will be Frank W. Ballou, S. A. Courtis, James F. Hosic, Earl Hudelson, W S. Monroe, and M. H. Willing. The Department of Classroom Teachers will hold three meetings: Monday, 2 P. M., Executive Committee meeting at Hotel Statler; Wednesday, 2 P. M., conference in committee room of Public Auditorium; Thursday noon, luncheon, followed by conference in committee room of Auditorium. The National Council of Administrative Women in Education will hold breakfast conferences at the Hotel Cleveland Tuesday, Wednesday and Thursday, from 8 to 9:30. The chief business will be the consideration and adoption of the revised constitution reported at Chicago last year. The American Association of Teachers Colleges will have a joint meeting and dinner on Friday evening at 6:30 with the National Council of Teachers Colleges, to discuss the proposed merger. Saturday at 9 A. M. there will be addresses at the Hotel Cleveland on "The Teachers College Movement," and at 2 P. M. on "The Problems of Teachers Colleges."