Leman Westphal (5 results)
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Paperback. Condition: New. Print on Demand. This book details the development of the International System of Weights and Measures, a standardized system of units of measurement, its current applications and implications for the future. The book is the result of work done by an international group of scientists in the late 19th c…entury to unify scientific measurement, with the aim of scientific and commercial progress. The book discusses the system's origins and historical development, the methods and apparatus used to establish and maintain the system's standards, and its adoption by various countries. The author also examines potential future extensions of the system, such as the inclusion of new units or the development of a more precise definition of the kilogram. The book will appeal to historians of science, those interested in standardization, and scientists in general who use the International System of Weights and Measures in their work. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.
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Paperback. Condition: New. Print on Demand. This book introduces a new instrument designed to accurately examine the division of circles. The author details methods using two to four separate microscopes. The author presents a method that is both straightforward and effective, resulting in a significant improvement over existing… technology. The author also provides insight into the history and development of circle-dividing methods, putting this tool in context with the evolution of engineering and optics. With its simple design and accurate results, this new apparatus represents a significant advancement in the field and offers a unique perspective on the history of precision measuring instruments. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.
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Paperback. Condition: New. Print on Demand. This book describes the development of a respiration apparatus that can be used to study respiration by mimicking natural breathing mechanisms more accurately than had been possible with previous devices. The apparatus can pump precise volumes of air into the lungs, enabling detailed m…easurement of the air inhaled and exhaled. The apparatus also includes a novelty valve to facilitate the collection of the exhaled air for analysis. With this tool, the author was able to vary the depth and frequency of respiration and study the effects of different gases on respiration, opening new research possibilities by enabling the study of precise and variable breathing in animals. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.
More imagesZeitschrift für Instrumentenkunde. Sechster (VI.) Jahrgang 1886. Enthalten sind die Hefte 1, Januar 1886 bis Heft 12, December 1886 (so komplett). Organ für Mittheilungen aus dem gesammten Gebiete der wissenschaftlichen Technik.
Instrumentenkunde.- / A. Leman, A. Westphal (Red.) - Abbe, E., Arzberger Fr. u.a. (Hrsg.):
Published by Julius Springer, Berlin 1886. 1886
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Seller: Antiquariat Carl Wegner, Berlin, B, GermanyAntiquariat Carl Wegner
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Hardcover. 26,5 x 19,5 cm. Weinroter Halbleinenband der Zeit mit goldgeprägtem Rückentitel und marmorierten Buchdeckeln. VIII, 448 Seiten mit Inhaltsverzeichnis, Namen- und Sachregister. Viele Abbildungen, Formeln, Tabellen im Text. Der Einband mit drei minimalen, kleinen Kratzern, der Innenteil sehr sauber, nur das Titelblatt e…twas braunrandig. Insgesamt gutes Exemplar. Beispiele aus dem Inhalt: A. Sprung: Neuer Thermobarograph mit Laufgewicht / L. Loewenherz: Zur Geschichte der Entwicklung der mechanischen Kunst / E. Geleich: Über Flutmesser / D. Appel: Der Refractor des McKim Observatory / E. Geleich: Zur Geschichte der Kreistheilungen / M. Thiesen: Über die Ablesung von Normalbarometern und überhaupt von größeren Flüssigkeitsmengen u.v.a. Artikel in den Rubriken Patentschau, Für die Werkstatt, Vereinsnachrichten, Fragekasten u.a. -- Bitte Portokosten außerhalb EU erfragen! / Please ask for postage costs outside EU! / S ' il vous plait demander des frais de port en dehors de l ' UE! // Bitte beachten Sie auch unsere Fotos! / Please also note our photos! / Veuillez noter nos photos -- Ob Sonnenschein oder warmer Regen: mit einem interessanten Buch kommen Sie immer gut durch den Tag. -- Wir kaufen Ihre werthaltigen Bücher! Tech.
More imagesPublished by Berlin, Springer 1887
- Periodical
Seller: Antiquariat Hans-Jürgen Ketz, Münster, NRW, GermanyAntiquariat Hans-Jürgen Ketz
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VII, 451 S. Mit zahlr. Abb. Quart (27x19 cm) Halbleinenband der Zeit. ** Enthält u.a.: D. Appel: Die freie Schwerkraft-Hemmung der Normal-Stern-Uhr zu Princeton N.J., W. C. L. von Schalk: Über die Pendeluhr Galilei's. Mit zahlreichen Abhandlungen von A. Abbe, Fr. Arzberger, C. Bamberg, C.M. v. Bauernfeind, W. Foerster, R. Fuess,… H. Haensch, E. Hartnack, W. Jordan, H. Kronecker, A. Kundt, H. Landolt, V. v. Lang, L. Loewenherz, S. v. Merz, G. Neumayer, J. A. Repsold, A. Rueprecht, K. Schellbach, F. Tietjen. * Einband beschabt u. bestoßen. Sauberes Exemplar. (SW: Naturwissenschaften - Physik - Optik - Wissenschaftliche Instrumente).
