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Instrumentum Proportionum, Oder Unterricht Vom Proportional-zirkul... is a historical treatise by Michael Scheffelt detailing the proportional compass and its uses. This German-language book provides instruction on the instrument, showcasing its mathematical principles and practical applications in engineering and other technical fields during the 17th century. The book serves as a valuable resource for understanding the history of mathematical instruments and the technical knowledge of the period. It offers insights into the proportional compass’s design, functionality, and significance, making it a relevant work for historians of science and mathematics as well as those interested in early engineering practices.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
