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1,382 result(s) for "Spherical astronomy."
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An Ottoman cosmography : translation of Cihānnümā
\"Cihānnümā is the summa of Ottoman geography and one of the axial texts of Islamic intellectual history. Kātib Çelebi (d. 1657) sought to combine the Islamic geographical tradition with the new European discoveries, atlases and surveys. His cosmography included a comprehensive description of the regions of the world, extending westward from Japan and as far as the eastern Ottoman provinces. Ebū Bekr b. Behrām ed-Dimaşḳī(d. 1691) continued with a survey of the Arab countries and the remaining Ottoman provinces of Anatolia. İbrāhīm Müteferriḳa combined the two, with additional notes and maps of his own, in one of the earliest Ottoman printed books, Kitāb-ı Cihānnümā (1732). Our translation includes the entire text of Müteferriḳa's edition, distinguishing clearly between the contributions of the three authors. Based on Kātib Çelebi's original manuscript we have made hundreds of corrections to Müteferriḳa's text. Additional corrections are based on comparison with Kātib Çelebi's Arabic, Persian, Turkish, Latin and Italian sources\"-- Provided by publisher.
An Ottoman cosmography : translation of Cihānnümā
Cihannüma is the summa of Ottoman geography and one of the axial texts of Islamic intellectual history. Katib Çelebi (d. 1657) sought to combine the Islamic geographical tradition with the new European discoveries, atlases and surveys. His cosmography included a comprehensive description of the regions of the world, extending westward from Japan and as far as the eastern Ottoman provinces. Ebu Bekr b. Behram ed-Dimaski (d. 1691) continued with a survey of the Arab countries and the remaining Ottoman provinces of Anatolia. Ibrahim Müteferrika combined the two, with additional notes and maps of his own, in one of the earliest Ottoman printed books, Kitab-i Cihannüma (1732). Our translation includes the entire text of MuÞteferrik?a's edition, distinguishing clearly between the contributions of the three authors. Based on Katib Çelebi's original manuscript we have made hundreds of corrections to Müteferrika's text. Additional corrections are based on comparison with Katib Çelebi's Arabic, Persian, Turkish, Latin and Italian sources.
Euclid’s Phaenomena
The book contains a translation and study of Euclid's Phaenomena, a work which once formed part of the mathematical training of astronomers from Central Asia to Western Europe. Included is an introduction that sets Euclid's geometry of the celestial sphere, and its application to the astronomy of his day, into its historical context for readers not already familiar with it. So no knowledge of astronomy or advanced mathematics is necessary for an understanding of the work. The book shows mathematical astronomy shortly before the invention of trigonometry, which allowed the calculation of exact results and the subsequent composition of Ptolemy's Almagest. The Phaenomena itself begins with an introduction (possibly not by Euclid) followed by eighteen propositions set out in geometrical style about how arcs of the zodiacal circle move across the sky. The astronomical application is to the small arc of that circle occupied by the Sun, but the Sun is not mentioned. This work and the (roughly) contemporaneous treatises of Autolycus and Aristarchos form a corpus of the oldest extant works on mathematical astronomy. Together with Euclid's Optics one has the beginnings of the history of science as an application of mathematics.
Heavenly Mathematics
Spherical trigonometry was at the heart of astronomy and ocean-going navigation for two millennia. The discipline was a mainstay of mathematics education for centuries, and it was a standard subject in high schools until the 1950s. Today, however, it is rarely taught.Heavenly Mathematicstraces the rich history of this forgotten art, revealing how the cultures of classical Greece, medieval Islam, and the modern West used spherical trigonometry to chart the heavens and the Earth. Glen Van Brummelen explores this exquisite branch of mathematics and its role in ancient astronomy, geography, and cartography; Islamic religious rituals; celestial navigation; polyhedra; stereographic projection; and more. He conveys the sheer beauty of spherical trigonometry, providing readers with a new appreciation for its elegant proofs and often surprising conclusions. Heavenly Mathematicsis illustrated throughout with stunning historical images and informative drawings and diagrams that have been used to teach the subject in the past. This unique compendium also features easy-to-use appendixes as well as exercises at the end of each chapter that originally appeared in textbooks from the eighteenth to the early twentieth centuries.
Euclid's Phaenomena: a translation and study of a hellenistic treatise in spherical astronomy
This book contains a translation and study of \"\"Euclid's Phaenomena\"\", a work which once formed part of the mathematical training of astronomers from Central Asia to Western Europe. Included is an introduction that sets Euclid's geometry of the celestial sphere, and its application to the astronomy of his day, into its historical context for readers not already familiar with it. So no knowledge of astronomy or advanced mathematics is necessary for an understanding of the work. The book shows mathematical astronomy shortly before the invention of trigonometry, which allowed the calculation of exact results and the subsequent composition of \"\"Ptolemy's Almagest\"\".\"\"The Phaenomena\"\" itself begins with an introduction (possibly not by Euclid) followed by eighteen propositions set out in geometrical style about how arcs of the zodiacal circle move across the sky. The astronomical application is to the small arc of that circle occupied by the Sun, but the Sun is not mentioned. This work and the (roughly) contemporaneous treatises of Autolycus and Aristarchos form a corpus of the oldest extant works on mathematical astronomy. Together with \"\"Euclid's Optics\"\", one has the beginnings of the history of science as an application of mathematics.
Aberration-corrected analytical transmission electron microscopy
\"The book is concerned with the theory, background, and practical use of transmission electron microscopes with lens correctors that can correct the effects of spherical aberration. The book also covers a comparison with aberration correction in the TEM and applications of analytical aberration corrected STEM in materials science and biology. This book is essential for microscopists involved in nanoscale and materials microanalysis especially those using scanning transmission electron microscopy, and related analytical techniques such as electron diffraction x-ray spectrometry (EDXS) and electron energy loss spectroscopy (EELS)\"-- \"The book will be concerned with the theory, background and practical use of transmission electron microscopes with lens correctors which can correct for the effects of spherical aberration\"--
Kepler's Philosophy and the New Astronomy
Johannes Kepler contributed importantly to every field he addressed. He changed the face of astronomy by abandoning principles that had been in place for two millennia, made important discoveries in optics and mathematics, and was an uncommonly good philosopher. Generally, however, Kepler's philosophical ideas have been dismissed as irrelevant and even detrimental to his legacy of scientific accomplishment. Here, Rhonda Martens offers the first extended study of Kepler's philosophical views and shows how those views helped him construct and justify the new astronomy. Martens notes that since Kepler became a Copernican before any empirical evidence supported Copernicus over the entrenched Ptolemaic system, his initial reasons for preferring Copernicanism were not telescope observations but rather methodological and metaphysical commitments. Further, she shows that Kepler's metaphysics supported the strikingly modern view of astronomical method that led him to discover the three laws of planetary motion and to wed physics and astronomy--a key development in the scientific revolution. By tracing the evolution of Kepler's thought in his astronomical, metaphysical, and epistemological works, Martens explores the complex interplay between changes in his philosophical views and the status of his astronomical discoveries. She shows how Kepler's philosophy paved the way for the discovery of elliptical orbits and provided a defense of physical astronomy's methodological soundness. In doing so, Martens demonstrates how an empirical discipline was inspired and profoundly shaped by philosophical assumptions.
On the boredom of science: positional astronomy in the nineteenth century
To those not engaged in the practice of scientific research, or telling the story of this enterprise, the image of empirical observation may conjure up images of boredom more than anything else. Yet surprisingly, the profoundly uninteresting nature of research to many science workers and readers in history has received little attention. This paper seeks to examine one moment of encroaching boredom: nineteenth-century positional astronomy as practised at leading observatories. Though possibly a coincidence, this new form of astronomical observation arose only a few decades before the English term 'boredom', for which the Oxford English Dictionary has no record prior to 1850. Through examining forms of observatory labour and publications, I offer in this paper an example of how boring work and reading helped shape a scientific discipline.
An analysis of the Tabulae magistrales by Giovanni Bianchini
Bianchini called Tabulae magistrales a set of eight tables he compiled to solve problems in spherical astronomy. This set, which is the object of this paper, consists of auxiliary and trigonometric functions, including the sine and the tangent functions, for radii 10,000 and 60,000, and seems to be the first set of tables in Latin specifically devoted to mathematical tools for computational astronomy. Bianchini presented some of his tables in decimal form, which meant that for the first time one of the oldest astronomical tradition, the sexagesimal base (R = 60), was abandoned.