Hartmann's Practika

Hartmann's Practika PDF Author: Georg Hartmann
Publisher: John Lamprey
ISBN:
Category : Science
Languages : en
Pages : 326

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Book Description

Hartmann's Practika

Hartmann's Practika PDF Author: Georg Hartmann
Publisher: John Lamprey
ISBN:
Category : Science
Languages : en
Pages : 326

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Book Description


Heaven and Earth United

Heaven and Earth United PDF Author:
Publisher: BRILL
ISBN: 9004381430
Category : Science
Languages : en
Pages : 300

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Book Description
Historically, the idea that the stars and planets influence the Earth and its inhabitants has proved powerful in almost every culture, offering an important context for the use of mathematical and astronomical instruments. In the past, however, historians of astronomy have paid relatively little attention to astrology and other “non-scientific” topics, while historians of astrology have tended to concentrate on the analysis of texts rather than surviving artefacts, scientific instruments in particular. Heaven and Earth United is an attempt to redress the balance through an exploration of the astrological contexts in which instruments once found a place. Contributors are Silke Ackermann, Marisa Addomine, Jim Bennett, Marvin Bolt, Louise E. Devoy, Richard Dunn, Seb Falk, Stephen Johnston, Richard L. Kremer, Günther Oestmann, Josefina Rodríguez-Arribas, Petra G. Schmidl, Giorgio Strano, and Sylvia Sumira.

A General History of Horology

A General History of Horology PDF Author: Turner
Publisher: Oxford University Press
ISBN: 0198863918
Category : Technology & Engineering
Languages : en
Pages : 777

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Book Description
A General History of Horology describes instruments used for the finding and measurement of time from Antiquity to the 21st century. In geographical scope it ranges from East Asia to the Americas. The instruments described are set in their technical and social contexts, and there is also discussion of the literature, the historiography and the collecting of the subject. The book features the use of case studies to represent larger topics that cannot be completely covered in a single book. The international body of authors have endeavoured to offer a fully world-wide survey accessible to students, historians, collectors, and the general reader, based on a firm understanding of the technical basis of the subject. At the same time as the work offers a synthesis of current knowledge of the subject, it also incorporates the results of some fundamamental, new and original research.

Manipulating the Sun

Manipulating the Sun PDF Author:
Publisher: BRILL
ISBN: 9004677658
Category : Science
Languages : en
Pages : 342

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Book Description
This volume puts two biblical miracles - the Sun reversing its course in II Kings 20:8-11/Isaiah 38:8 (Horologium Ahaz) and the Sun standing still in Joshua 10:12 -, in the early modern period centre stage. We pay special attention to the development of related imagery, their role as anti-Copernican arguments (in text and image), their reception, their treatment in the mathematical sciences, and their various cultural layers, with a focus on the history of art and the history of science in the sixteenth and seventeenth centuries. The material discussed spreads from rather prosaic mathematical reflections to highly appealing visual representations of the two miracles.

A History of Folding in Mathematics

A History of Folding in Mathematics PDF Author: Michael Friedman
Publisher: Birkhäuser
ISBN: 3319724878
Category : Mathematics
Languages : en
Pages : 430

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Book Description
While it is well known that the Delian problems are impossible to solve with a straightedge and compass – for example, it is impossible to construct a segment whose length is cube root of 2 with these instruments – the discovery of the Italian mathematician Margherita Beloch Piazzolla in 1934 that one can in fact construct a segment of length cube root of 2 with a single paper fold was completely ignored (till the end of the 1980s). This comes as no surprise, since with few exceptions paper folding was seldom considered as a mathematical practice, let alone as a mathematical procedure of inference or proof that could prompt novel mathematical discoveries. A few questions immediately arise: Why did paper folding become a non-instrument? What caused the marginalisation of this technique? And how was the mathematical knowledge, which was nevertheless transmitted and prompted by paper folding, later treated and conceptualised? Aiming to answer these questions, this volume provides, for the first time, an extensive historical study on the history of folding in mathematics, spanning from the 16th century to the 20th century, and offers a general study on the ways mathematical knowledge is marginalised, disappears, is ignored or becomes obsolete. In doing so, it makes a valuable contribution to the field of history and philosophy of science, particularly the history and philosophy of mathematics and is highly recommended for anyone interested in these topics.

The Crown and the Cosmos

The Crown and the Cosmos PDF Author: Darin Hayton
Publisher: University of Pittsburgh Press
ISBN: 0822981130
Category : Science
Languages : en
Pages : 303

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Book Description
Despite its popular association today with magic, astrology was once a complex and sophisticated practice, grounded in technical training provided by a university education. The Crown and the Cosmos examines the complex ways that political practice and astrological discourse interacted at the Habsburg court, a key center of political and cultural power in early modern Europe. Like other monarchs, Maximilian I used astrology to help guide political actions, turning to astrologers and their predictions to find the most propitious times to sign treaties or arrange marriage contracts. Perhaps more significantly, the emperor employed astrology as a political tool to gain support for his reforms and to reinforce his own legitimacy as well as that of the Habsburg dynasty. Darin Hayton analyzes the various rhetorical tools astrologers used to argue for the nobility, antiquity, and utility of their discipline, and how they strove to justify their "science" on the grounds that through its rigorous interpretation of the natural world, astrology could offer more reliable predictions. This book draws on extensive printed and manuscript sources from archives across northern and central Europe, including Poland, Germany, France, and England.

Astrolabes and Angels, Epigrams and Enigmas

Astrolabes and Angels, Epigrams and Enigmas PDF Author: David A. King
Publisher: Franz Steiner Verlag Wiesbaden GmbH
ISBN:
Category : Acrostics
Languages : en
Pages : 368

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Book Description
On the astrolabe presented by the young German astronomer Regiomontanus to his ageing patron Cardinal Bessarion there is a Latin epigram and the image of an angel. The former is a geometrically-arranged acrostic with eight hidden vertical axes. Of these, the two principal ones correspond precisely to the two principal axes of the enigmatic painting "The Flagellation of Christ" by Piero della Francesca. In this are five figures in a flagellation scene on the left and three "modern" figures on the right, including a bearded Greek and an "angelic" young man in cardinal red. Over 40 interpretations of the three "moderns" have been proposed over the past 150 years. In this book, David King shows how clusters of letters across the epigram reveal double or multiple identities for each and every one of the eight persons in the painting. The only new person in the drama is Regiomontanus, whose epigram provided the inspiration for the painting. His image embodies three talented young men close to Bessarion who had recently died, and also symbolizes the cardinal's hope for the future.

Hartmann the Anarchist

Hartmann the Anarchist PDF Author: Edward Douglas Fawcett
Publisher: London : E. Arnold
ISBN:
Category : Anarchism
Languages : en
Pages : 234

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Book Description
An anarchist genius attempts to destroy London from his futuristic flying battleship.

La Homeopatia Practica

La Homeopatia Practica PDF Author: Claude Binet
Publisher: iUniverse
ISBN: 0595193811
Category : Health & Fitness
Languages : en
Pages : 370

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Book Description
La naturaleza y origen de los remedios utilizados en homeopatía son muy variados y hacen referencia a los reinos animal, vegetal y mineral y a una serie de productos diversos y muy articulares que convierten la lista de remedios homeopáticos en prácticamente infinita, puesto que toda sustancia, sea cual sea su naturaleza u origen puede resultar un medicamento homeopático si sus indicaciones son conocidas y comprobadas clínica y experimentalmente. Para que esta obra pueda ser una guía práctica, el autor ha limitado deliberadamente el contenido a aquellos remedios más comúnmente utilizados para permitir un fácil y ágil manejo y así encontrar rápidamente la descripción de un determinado remedio o lo que hacer en un determinado caso. El libro, ordenado alfabéticamente, contiene dos partes bien diferenciadas. La primera, la materia médica, trata el estudio simplificado de las principales propiedades terapéuticas de los remedios homeopáticos más empleados. La segunda, léxico terapéutico, presenta dónde podrán encontrarse los diferentes remedios indicados en el tratamiento de cada tipo de dolencia. Al final de la obra hay una serie de consejos razonables y prácticos ofrecidos por dos farmacéuticos homeópatas.

Handbook of Flowering

Handbook of Flowering PDF Author: Abraham H. Halevy
Publisher: CRC Press
ISBN: 1351081004
Category : Science
Languages : en
Pages : 482

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Book Description
These volumes are an exhaustive source of information on the control and regulation of flowering. They present data on the factors controlling flower induction and how they may be affected by climate and chemical treatments. For each plant, specific information is provided on all aspects of flower development, including sex expression, requirements for flowering initiation and development, photoperiod, light density, vernalization, and other temperature effects and interactions. Individual species are described from the standpoint of juvenility and maturation, morphology, induction and morphogenesis to anthesis. All information is presented alphabetically for easy reference