In the hopes of "preserving these delightful devices for future generations," this collector of slide rules covers everything one could possibly want to know about this crude form of analog computer: from its invention in the 17th century to manufacturers- retailers, 1850-1998, and the Oughtred Society for collectors. Includes a glossary with biographies, patent data, component specs, dating and valuing, care, historical milestones, and illustrations

A complete road map to creating successful technical presentations Planning a technical presentation can be tricky. Does the audience know your subject area? Will you need to translate concepts into terms they understand? What sort of visuals should you use? Will this set of bullets truly convey the information? What will your slides communicate to future users? Questions like these and countless others can overwhelm even the most savvy technical professionals. This full-color, highly visual work addresses the unique needs of technical communicators looking to break free of the bulleted slide paradigm. For those seeking to improve their presentations, the authors provide guidance on how to plan, organize, develop, and archive technical presentations. Drawing upon the latest research in cognitive science as well as years of experience teaching seasoned technical professionals, the authors cover a myriad of issues involved in the design of presentations, clearly explaining how to create slide decks that communicate critical technical information. Key features include: Innovative methods for archiving and documenting work through slides in the technical workplace Guidance on how to tailor presentations to diverse audiences, technical and nontechnical alike A plethora of color slides and visual examples illustrating various strategies and best practices Links to additional resources as well as slide examples to inspire on-the-job changes in presentation practices Slide Rules is a first-rate guide for practicing engineers, scientists, and technical specialists as well as anyone wishing to develop useful, engaging, and informative technical presentations in order to become an expert communicator. Find the authors at techartsconsulting.com or on Facebook at: SlideRulesTAC

Although it is popularly assumed that the history of computing before the second half of the 20th century was unimportant, in fact the Industrial Revolution was made possible and even sustained by a parallel revolution in computing technology. An examination and historiographical assessment of key developments helps to show how the era of modern electronic computing proceeded from a continual computing revolution that had arisen during the mechanical and the electrical ages. This unique volume introduces the history of computing during the “first” (steam) and “second” (electricity) segments of the Industrial Revolution, revealing how this history was pivotal to the emergence of electronic computing and what many historians see as signifying a shift to a post-industrial society. It delves into critical developments before the electronic era, focusing on those of the mechanical era (from the emergence of the steam engine to that of the electric power network) and the electrical era (from the emergence of the electric power network to that of electronic computing). In so doing, it provides due attention to the demarcations between—and associated classifications of—artifacts for calculation during these respective eras. In turn, it emphasizes the history of comparisons between these artifacts. Topics and Features: motivates exposition through a firm historiographical argument of important developments explores the history of the slide rule and its use in the context of electrification examines the roles of analyzers, graphs, and a whole range of computing artifacts hitherto placed under the allegedly inferior class of analog computers shows how the analog and the digital are really inseparable, with perceptions thereof depending on either a full or a restricted view of the computing process investigates socially situated comparisons of computing history, including the effects of a political economy of computing (one that takes into account cost and ownership of computing artifacts) assesses concealment of analog-machine labor through encasement (“black-boxing”) Historians of computing, as well as those of technology and science (especially, energy), will find this well-argued and presented history of calculation and computation in the mechanical and electrical eras an indispensable resource. The work is a natural textbook companion for history of computing courses, and will also appeal to the broader readership of curious computer scientists and engineers, as well as those who generally just have a yearn to learn the contextual background to the current digital age. "In this fascinating, original work, Tympas indispensably intertwines the histories of analog and digital computing, showing them to be inseparable from the evolution of social and economic conditions. " Prof. David Mindell, MIT

Originally published in German in 1977 as the first major book on the history of the slide rule since Florian Cajori's A History of the Logarithmic Slide Rule, this newly revised and translated edition of Slide Rules, A Journey Through Three Centuries, offers readers a fresh, more Continental perspective on this most fascinating of calculating instruments. The book is an important piece of historical and technological research, in which the author includes the history of the slide rule from its beginnings in the 17th century, through its gradual adoption and development worldwide during the 19th and 20th centuries, to its sudden and almost complete demise in the mid-1970s. He also covers the evolution of various slide rule components, technologies, and manufacturing processes, as well as histories of the major slide rule manufacturers and their product lines during the last 100 years. There are detailed references to original sources throughout, which the reader may use as a springboard to further study and research. Readable and very informative, this is a book that, together with those of Cajori and Peter Hopp, any slide rule collector or historian of technology will find of great interest and real benefit.

Rule collectors rejoice! In A Source Book for Rule Collectors with Rule Concordance and Value Guide, Philip Stanley has crafted a masterfully comprehensive illustrated reference guide to the history, uses, and values of measuring instruments. ASource Book for Rule Collectors includes reprints of the best articles from the past 100 years dealing with rules and measurement; extensive coverage of the materials, construction, graduations and uses of rules; a detailed table of the European measures used before the metric system, for identifying rules by size and county of origin; a thorough cataloging of rule accessories; and a complete bibliography of reprints, articles, books, and publications dealing with measuring instruments. The included Rule Concordance and Value Guide gives complete information for identifying and comparing all rules by all major American makers; estimates for each rule’s value based on condition and maker; extensive information on rule value, including condition, selling environment, and charisma. This book is an essential reference. Rule enthusiasts will find the combination a pleasure to read. Mr. Stanley’s breadth of knowledge and his regard for the rules he discusses are apparent throughout. For the antique tool dealer, rule collector, and student of the history of technology, this book is essential.

Wie rechnete man bevor es Computer gab? Mit welchen Rechenhilfsmitteln konnten Ingenieure Maschinen konstruieren, die sicher und effizient funktionierten, Architekten Bauwerke planen, deren Statik sicher war, Wissenschaftler aus Meßreihen die Gesetze der Natur errechnen, und Kaufleute Gewinn und Verlust zahlenmäßg im Griff haben? Mit Rechenschiebern, Rechenmaschinen, Tabellenwerken und mathematischen Spezialinstrumenten erbrachten unsere Vorfahren verblüffende Leistungen. Dies galt ganz besonders in der Zeit der Zweiten Industriellen Revolution zwischen der Mitte des 19. und des 20. Jahrhunderts, als eine ganze Reihe technischer Erfindungen das Leben dramatisch veränderte, wie Strom und Licht, Auto und Flugzeug, Telefon und Radio, und viel und vielseitig gerechnet werden mußte, um all dies zu erschaffen. Zu diesem Thema trafen sich Sammler und Forscher von Rechenschiebern und anderen Rechenhilfsmitteln im Oktober 2013 in Berlin zu einer internationalen Konferenz unter dem Motto "Rechnen für Wissenschaft, Entwicklung und Produktion: Rechengeräte für die zweite industrielle Revolution". How did we compute in the ages before the advent of the modern digital computer? What were the instruments to help engineers, scientists, business men and others to perform arithmetic and other mathematical computations for their work? Using slide rules, adding machines, tables, and special instruments our ancestors achieved stunning results, particularly in the times of the Second Industrial Revolution. In the time frame from 1850 to 1950 a broad wave of inventions and technological developments changed life dramatically: Electricity provided power and illumination, cars and airplanes made us a mobile society, telephones and radio gave us unprecedented communication. All that required computation in one way or other. The International Meeting of collector and researchers of slide rules and other historical computing instruments of 2013 took place in Berlin, the largest European industrial metropolis in this period. This richly illustrated book is a collection of papers from this conference.

'How Round is your Circle?' includes chapters on: hard lines; how to draw a straight line; four-bar variations; building the world's first rules; dividing the circle; falling aprat; follow my leader; all approximations are rational; all a matter of balance; and finding some equilibrium.

Written by America's most famous engineering storyteller and educator, this abecedarium is one engineer's selection of thoughts, quotations, anecdotes, facts, trivia and arcana relating to the practice, history, culture and traditions of his profession. The entries reflect decades of reading, writing, talking and thinking about engineers and engineering, and range from brief essays to lists of great engineering achievements. This work is organized alphabetically and more like a dictionary than an encyclopedia. It is not intended to be read from first page to last, but rather to be dipped into, here and there, as the mood strikes the reader. In time, it is hoped, this book should become the source to which readers go first when they encounter a vague or obscure reference to the softer side of engineering.