{ "item_title" : "Magnets", "item_author" : [" Charles R. Underhill "], "item_description" : "Magnets is a comprehensive technical treatise on the practical and theoretical aspects of electromagnetism and magnetic phenomena. Written by renowned electrical engineer Charles R. Underhill, this work serves as an authoritative guide for students and professionals seeking a deeper understanding of the design and application of various magnetic devices. The text covers a broad range of topics, including the laws of the magnetic circuit, the properties of permanent and electromagnets, and the intricate mechanics of solenoids and winding calculations.Underhill provides detailed explanations of magnetic induction, flux, and the characteristics of magnetic materials available in the early 20th century. Through clear diagrams and mathematical formulations, the author bridges the gap between abstract physical principles and their practical realization in electrical machinery and apparatus. Magnets remains a significant historical reference in the field of electrical engineering, capturing the foundational knowledge that fueled the rapid development of electromagnetic technology. Readers will find a wealth of information regarding the construction of coils and the analysis of magnetic pull, making it an essential resource for those interested in the history of science and the evolution of electrical design.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 may 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.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/1/02/532/207/102532207X_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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