Project Gutenberg 2015-11-21 Public domain in the USA. 256 Pierre, de Maricourt, active 13th century Maricourt, Pierre de Peregrinus, Peter Peregrinus, Petrus Petrus Peregrinus, of Maricourt Petrus, Peregrinus Arnold, Brother 1868 1928 Mertens, Joseph Charles Potamian, Brother 1837 1917 O'Reilly, M. F. (Michael Francis) O'Reilly, Michael Francis 04031076 The Letter of Petrus Peregrinus on the Magnet, A.D. 1269 Produced by deaurider, Stephen Hutcheson, and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "The Letter of Petrus Peregrinus on the Magnet, A.D. 1269" by Pierre is a scientific publication written during the late 13th century. This work discusses the properties of magnets, particularly focusing on the lodestone, and serves as a foundational document in the early field of magnetism. Situated in a time when the scientific exploration of natural phenomena was just beginning to flourish, this text records pioneering observations and experiments related to magnetism. The letter is written as a correspondence addressed to Sigerus de Foucaucourt, wherein Peregrinus describes his experiments with lodestones and outlines their properties in a systematic manner. He famously articulates principles such as the behavior of magnetic poles, their attraction and repulsion, and how a magnetized needle can be used to determine direction. The work is divided into two main sections: the first focuses on the characteristics of lodestones and magnetic fields, while the second presents an ambitious exploration of constructing a perpetual motion device using magnetic principles. Overall, Peregrinus stands out as an influential figure in the history of physics, merging theoretical inquiry with practical experimentation. (This is an automatically generated summary.) Reading ease score: 56.4 (10th to 12th grade). Somewhat difficult to read. en Magnetism -- Early works to 1800 QC Text Browsing: Science - Physics Browsing: Science - General Category: History - Medieval/Middle Ages Category: Science - Physics 93514 2025-06-20T10:51:12.815006 text/html 66733 2024-10-22T23:29:31 text/html 287506 2025-06-20T10:51:17.946026 application/epub+zip 287506 2025-06-20T10:51:15.037001 application/epub+zip 80309 2025-06-20T10:51:13.930990 application/epub+zip 330108 2025-06-20T10:51:19.969985 application/x-mobipocket-ebook 315227 2025-06-20T10:51:16.885111 application/x-mobipocket-ebook 108792 2022-09-22T20:36:24.554083 application/x-mobipocket-ebook 69532 2025-06-20T10:51:12.299041 text/plain; charset=us-ascii 49476 2024-10-22T23:29:31 text/plain; charset=us-ascii 17435 2025-06-20T10:51:20.224989 application/rdf+xml 16556 2025-06-20T10:51:14.025057 image/jpeg 2359 2025-06-20T10:51:13.978032 image/jpeg 256400 2025-06-20T10:51:12.837030 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 en.wikipedia