Project Gutenberg 2025-04-18 Public domain in the USA. 337 Pickworth, Charles N. (Charles Newton) 1861 1955 Pickworth, C. N. (Charles Newton) Pickworth, Charles Newton 21026568 The slide rule : $b a practical manual Seventeenth edition $aNew York :$bD. Van Nostrand Co., $c1917, pubdate 1920. Richard Tonsing and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "The Slide Rule: A Practical Manual" by Charles N. Pickworth is a technical manual written in the early 20th century. The book is aimed at readers who wish to understand and effectively use the slide rule, an analog mechanical device for performing mathematical calculations. It covers the fundamental principles of logarithms and mechanical calculation, as well as the practical aspects, techniques, and various types of slide rules used for technical and engineering computations. This manual is intended for students, engineers, and anyone interested in the theory and application of slide rules. The opening of the manual begins with a series of prefaces noting updates in new editions, emphasizing the inclusion of special slide rules and recent applications such as screw-cutting gear calculations. The content proceeds to a concise introduction to slide rules, explaining their function as tools for mechanically doing calculations based on logarithms. Pickworth starts by demystifying logarithms and demonstrating their close relationship to the slide rule’s function, illustrating both arithmetical and mechanical principles behind the instrument. The text introduces the reader step-by-step to the concepts of notation by powers of ten, the construction and use of the slide rule, and how its unique scales operate. Early chapters provide practical instructions for multiplication, division, reading scales, using the cursor, and understanding the notation and number of digits in results. The author ensures clarity by incorporating worked examples, practical hints, and a logical progression from basic to more advanced operations, making the material approachable for both beginners and those seeking to deepen their expertise with the slide rule. (This is an automatically generated summary.) https://archive.org/details/cu31924003979105 20200602144540pickworth 1917 US Reading ease score: 70.1 (7th grade). Fairly easy to read. en Slide-rule QA Text Category: Engineering & Technology Category: Mathematics Category: How To ... 467876 2025-07-30T05:47:03.031810 text/html 439141 2025-04-18T14:26:04 text/html 3910587 2025-07-30T05:47:17.956198 application/epub+zip 3912300 2025-07-30T05:47:07.174271 application/epub+zip 322686 2025-07-30T05:47:05.048791 application/epub+zip 4677844 2025-07-30T05:47:24.823200 application/x-mobipocket-ebook 4632886 2025-07-30T05:47:16.086281 application/x-mobipocket-ebook 344708 2025-07-30T05:47:00.660791 text/plain; charset=us-ascii 324827 2025-04-18T14:26:04 text/plain; charset=us-ascii 16505 2025-07-30T05:47:25.051171 application/rdf+xml 15832 2025-07-30T05:47:05.536773 image/jpeg 2188 2025-07-30T05:47:05.317809 image/jpeg 4989162 2025-07-30T05:47:03.247855 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog