{ "item_title" : "The Art of Projecting", "item_author" : [" A. E. Dolbear "], "item_description" : "The Art of Projecting is a manual written by Professor A. E. Dolbear that provides readers with a comprehensive guide to conducting experiments in physics, chemistry, and natural history using the Porte Lumiere and Magic Lantern. The book teaches readers how to project images and diagrams onto a screen for the purpose of scientific experimentation, and covers topics such as optics, electricity, magnetism, and sound. The manual is designed to be accessible to both beginners and advanced practitioners, and includes step-by-step instructions, diagrams, and illustrations to help readers understand the concepts and techniques involved. Overall, The Art of Projecting is a valuable resource for anyone interested in using projection technology for scientific research and experimentation.1877. Illustrated. From the Preface: The object of this treatise is to point out to teachers of physical science, and to others who may be interested in experimentation, the usefulness of the Magic Lantern, and especially of the Porte Lumiere, and a few other pieces of apparatus which can mostly extemporized. With these a surprisingly large number of experiments in every department of physics may be performed, and every department of science and art may be illustrated; and the illustrations may be upon a scale of magnitude which will surprise one who has never witnessed them. The manipulation of the apparatus is not at all difficult, and no one need fear he will not succeed in doing anything described in the book, provided that at first he masters the simple conditions of projection with a single lens and with a condenser.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/1/43/260/271/1432602713_b.jpg", "price_data" : { "retail_price" : "39.95", "online_price" : "39.95", "our_price" : "39.95", "club_price" : "39.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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