On the Origin of Clockwork, Perpetual Motion Devices, and the Compass

On the Origin of Clockwork, Perpetual Motion Devices, and the Compass
Author: Derek J. de Solla Price
Publisher: Good Press
Total Pages: 67
Release: 2019-11-21
Genre: Fiction
ISBN:

Derek J. de Solla Price delves into the complex history and origins of two of man's most important inventions: the mechanical clock and the magnetic compass. He sheds light on the false and misguided histories that have been passed down through generations, and replaces conjecture with strong evidence and a balanced understanding. Through research on the history of gearing and Chinese astronomical machines, Price presents a revised story of the clock's origin, and shows how it is related to the Perpetuum Mobile, a chimera of science that played an important role in the development of energetics and thermodynamics.

On the Origin of Clockwork, Perpetual Motion Devices, and the Compass

On the Origin of Clockwork, Perpetual Motion Devices, and the Compass
Author: Derek J. de Solla Price
Publisher: DigiCat
Total Pages: 69
Release: 2022-08-15
Genre: Fiction
ISBN:

DigiCat Publishing presents to you this special edition of "On the Origin of Clockwork, Perpetual Motion Devices, and the Compass" by Derek J. de Solla Price. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.

The First Computers

The First Computers
Author: Raul Rojas
Publisher: MIT Press
Total Pages: 476
Release: 2002-07-26
Genre: Science
ISBN: 9780262681377

This history of computing focuses not on chronology (what came first and who deserves credit for it) but on the actual architectures of the first machines that made electronic computing a practical reality. The book covers computers built in the United States, Germany, England, and Japan. It makes clear that similar concepts were often pursued simultaneously and that the early researchers explored many architectures beyond the von Neumann architecture that eventually became canonical. The contributors include not only historians but also engineers and computer pioneers. An introductory chapter describes the elements of computer architecture and explains why "being first" is even less interesting for computers than for other areas of technology. The essays contain a remarkable amount of new material, even on well-known machines, and several describe reconstructions of the historic machines. These investigations are of more than simply historical interest, for architectures designed to solve specific problems in the past may suggest new approaches to similar problems in today's machines. Contributors Titiimaea F. Ala'ilima, Lin Ping Ang, William Aspray, Friedrich L. Bauer, Andreas Brennecke, Chris P. Burton, Martin Campbell-Kelly, Paul Ceruzzi, I. Bernard Cohen, John Gustafson, Wilhelm Hopmann, Harry D. Huskey, Friedrich W. Kistermann, Thomas Lange, Michael S. Mahoney, R. B. E. Napper, Seiichi Okoma, Hartmut Petzold, Raúl Rojas, Anthony E. Sale, Robert W. Seidel, Ambros P. Speiser, Frank H. Sumner, James F. Tau, Jan Van der Spiegel, Eiiti Wada, Michael R. Williams

Dudley's Handbook of Practical Gear Design and Manufacture, Second Edition

Dudley's Handbook of Practical Gear Design and Manufacture, Second Edition
Author: Stephen P. Radzevich
Publisher: CRC Press
Total Pages: 874
Release: 2012-04-02
Genre: Technology & Engineering
ISBN: 1439866023

A unique, single source reference for all aspects of gears, Dudley's Handbook of Practical Gear Design and Manufacture, Second Edition provides comprehensive and consistent information on the design and manufacture of gears for the expert and novice alike. The second edition of this industry standard boasts seven new chapters and appendices as well as a wealth of updates throughout. New chapters and expanded topics include: Gear Types and Nomenclature, Gear Tooth Design, Gear Reactions and Mountings, Gear Vibration, The Evolution of the Gear Art, Novikov Gearing and the Inadequacy of the Term, and thoroughly referenced Numerical Data Tables. Features: Offers a single-source reference for all aspects of the gear industry Presents a comprehensive and self-consistent collection of knowledge, practical methods, and numerical tables Discusses optimal design and manufacture of gears of all known designs for the needs of all industries Explains concepts in accessible language and with a logical organization, making it simple to use even by beginners in the field Provides adequate recommendations for gear practitioners in all areas of gear design, production, inspection, and application Includes practical examples of successful use of tools covered in the Handbook ? Logically organized and easily understood, the Handbook requires only a limited knowledge of mathematics for adequate application to almost any situation or question. Whether you are a high-volume gear manufacturer or a relatively small factory, the Handbook and some basic common sense can direct the sophisticated design of any type of gear, from the selection of appropriate material, production of gear blanks, cutting gear teeth, advanced methods of heat treatment, and gear inspection. No other sources of information are necessary for the gear designer or manufacturer once they have the Handbook.

Bulletin

Bulletin
Author: United States National Museum
Publisher:
Total Pages: 88
Release: 1971
Genre: Science
ISBN:

Instruments and their Music in the Middle Ages

Instruments and their Music in the Middle Ages
Author: TimothyJ. McGee
Publisher: Routledge
Total Pages: 556
Release: 2017-07-05
Genre: History
ISBN: 135156272X

This is a collection of twenty-nine of the most influential articles and papers about medieval musical instruments and their repertory. The authors discuss the construction of the instruments, their playing technique, the occasions for which they performed and their repertory. Taken as a whole, they paint a very broad, as well as detailed, picture of instrumental performance during the medieval period.

Feeling Things

Feeling Things
Author: Stephanie Downes
Publisher: Oxford University Press
Total Pages: 270
Release: 2017-12-30
Genre: History
ISBN: 0192523651

This interdisciplinary essay collection investigates the various interactions of people, feelings, and things throughout premodern Europe. It focuses on the period before mass production, when limited literacy often prioritised material methods of communication. The subject of materiality has been of increasing significance in recent historical inquiry, alongside growing emphasis on the relationships between objects, emotions, and affect in archaeological and sociological research. The historical intersections between materiality and emotions, however, have remained under-theorised, particularly with respect to artefacts that have continuing resonance over extended periods of time or across cultural and geographical space. Feeling Things addresses the need to develop an appropriate cross-disciplinary theoretical framework for the analysis of objects and emotions in European history, with special attention to the need to track the shifting emotional valencies of objects from the past to the present, and from one place and cultural context to another. The collection draws together an international group of historians, art historians, curators, and literary scholars working on a variety of cultural, literary, visual, and material sources. Objects considered include books, letters, prosthetics, religious relics, shoes, stone, and textiles. Many of these have been preserved in international galleries, museums, and archives, while others have remained in their original locations, even as their contexts have changed over time. The chapters consider the ways in which emotions such as despair, fear, grief, hope, love, and wonder become inscribed in and ascribed to these items, producing 'emotional objects' of significance and agency. Such objects can be harnessed to create, affirm, or express individual relationships, as, for example, in religious devotion and practice, or in the construction of cultural, communal, and national identities.