La Voie lactée: une autobiographie de notre galaxie PDF Download

Author: Moiya McTier
Publisher: Éditions MultiMondes
ISBN: 2897733861
Category : Science
Languages : fr
Pages : 282

View

Book Description
Après 14 milliards d’année, la Voie lactée, notre galaxie, se confie - enfin - pour raconter son histoire sans cacher qu’en tourbillonnant sans cesse, elle a avalé sans vergogne des milliers et des milliers d’étoiles et déchiqueté un nombre inimaginable de galaxies.

Author: Clive Thompson
Publisher: Penguin Press
ISBN: 0735220565
Category : Business & Economics
Languages : en
Pages : 450

View

Book Description
"[An] anthropological reckoning with the most powerful tribe in the world today, computer programmers--where they come from, how they think, what makes for greatness in their world, and what should give us pause"--

Author: James Lequeux
Publisher: EDP Sciences
ISBN: 2759830098
Category : Science
Languages : fr
Pages : 400

View

Book Description
Notre connaissance de la Voie lactée a été profondément renouvelée depuis une dizaine d’années suite aux résultats du satellite astrométrique HIPPARCOS et aux grands relevés stellaires. Bien des concepts que l’on croyait bien établis se sont effondrés, pour être remplacés par d’autres qui vont dans le sens d’une plus grande complexité : en particulier, la mise en évidence des migrations radiales des étoiles vient brouiller l’image simpliste que l’on avait du disque galactique. Certains sujets ont fait d’énormes progrès, par exemple la physique du centre de la Voie lactée avec son trou noir massif, mais d’autres problèmes subsistent, comme la nature de la matière noire qui semble exister dans notre Galaxie. Cet ouvrage fait le point des connaissances actuelles sur la Voie lactée, présentées d’une manière aussi simple et didactique que possible. Les notions de base sont toujours rappelées, ce qui rend son accès possible aux lecteurs n’ayant pas de formation approfondie en astronomie. Cet ouvrage de base servira pour mieux comprendre les résultats attendus de Gaia, qui vont arriver dans quelques années après le lancement en 2013. Françoise Combes est astronome à l’Observatoire de Paris et membre de l’Académie des sciences. Son activité couvre une très grande partie des sujets abordés dans ce livre, avec une prédilection pour les simulations numériques. James Lequeux est astronome émérite à l’Observatoire de Paris. Ses principales spécialités sont le milieu interstellaire, la formation des étoiles et l’évolution des galaxies.

Author: Martin Rees
Publisher: Icon Books Ltd
ISBN: 1848314523
Category : Science
Languages : en
Pages : 224

View

Book Description
When it comes to big science, very few things are conclusively known. From Quantum Mechanics to Natural Selection, what we have instead are theories - ideas explain why things happen the way they do. We don't know for certain these are correct - no one ever saw the Big Bang - but with them we can paint beautiful, breathtaking pictures of everything from human behaviour to what the future may hold. Profiling the key scientists behind each theory, "30-Second Theories" presents each entry in a unique, eye-catching full-colour design, with thought-provoking extras and stylish illustrations. It is essential for anyone keen on expanding their mind with science's most thrilling ideas.

Author: David Clarke
Publisher: Edinburgh University Press
ISBN: 0748678921
Category : Science
Languages : en
Pages : 391

View

Book Description
This engrossing and entertaining scientific history includes the story of Glasgow's 'Big Bang' of 1863, the controversy over 'Astronomer Royal for Scotland' and a historical survey of the eight observatories that once populated Glasgow.

Author: Sally P. Ragep
Publisher: Springer
ISBN: 3319319930
Category : Mathematics
Languages : en
Pages : 359

View

Book Description
This book provides the only critical edition and English translation of Maḥmūd al-Jaghmīnī’s al-Mulakhkhaṣ fī al-hayʾa al-basīṭa, the most widely circulated Arabic treatise on Ptolemaic astronomy ever written. Composed in the early 13th century, this introductory textbook played a crucial role in the teaching, dissemination, and institutional instruction of Islamic astronomy well into the 19th century (and beyond). Establishing the base text is a fundamental prerequisite for gaining insights into what was considered an elementary astronomical textbook in Islam and also for understanding the extensive commentary tradition that built upon it. Within this volume, the Mulakhkhaṣ is situated within the broader context of the genre of literature termed ʿilm al-hayʾa, which has become the subject of intensive research over the past 25 years. In so doing, it provides a survey of summary accounts of theoretical astronomy of Jaghmīnī’s predecessors, both Ancient and Islamic, which could have served as potential sources for the Mulakhkhaṣ. Jaghmīnī’s dates (which until now remained unsettled) are established, and it is definitively shown that he composed not only the Mulakhkhaṣ but also other scientific treatises, including the popular medical treatise al-Qānūnča, during a period that has been deemed one of scientific decline and stagnation in Islamic lands. The book will be of particular interest to scholars engaged in the study of Islamic theoretical astronomy, but is accessible to a general readership interested in learning what constituted an introduction to Ptolemaic astronomy in Islamic lands.

Author: Stefano Gattei
Publisher: Princeton University Press
ISBN: 069117489X
Category : Biography & Autobiography
Languages : en
Pages : 440

View

Book Description
The first collection and translation into English of the earliest biographical accounts of Galileo’s life This unique critical edition presents key early biographical accounts of the life and work of Galileo Galilei (1564–1642), written by his close contemporaries. Collected and translated into English for the first time and supplemented by an introduction and incisive annotations by Stefano Gattei, these documents paint an incomparable firsthand picture of Galileo and offer rare insights into the construction of his public image and the complex intertwining of science, religion, and politics in seventeenth-century Italy. Here in its entirety is Vincenzo Viviani’s Historical Account, an extensive and influential biography of Galileo written in 1654 by his last and most devoted pupil. Viviani’s text is accompanied by his “Letter to Prince Leopoldo de’ Medici on the Application of Pendulum to Clocks” (1659), his 1674 description of Galileo’s later works, and the long inscriptions on the façade of Viviani’s Florentine palace (1702). The collection also includes the “Adulatio perniciosa,” a Latin poem written in 1620 by Cardinal Maffeo Barberini—who, as Pope Urban VIII, would become Galileo’s prosecutor—as well as descriptive accounts that emerged from the Roman court and contemporary European biographers. Featuring the original texts in Italian, Latin, and French with their English translations on facing pages, this invaluable book shows how Galileo’s pupils, friends, and critics shaped the Galileo myth for centuries to come, and brings together in one volume the primary sources needed to understand the legendary scientist in his time.

Author: Jñānarāja
Publisher: JHU Press
ISBN: 1421414422
Category : History
Languages : en
Pages : 372

View

Book Description
The first English translation of this major work of classical Indian astronomy and mathematics. A treasure for anyone interested in early modern India and the history of mathematics, this first English translation of the Siddhāntasundara reveals the fascinating work of the scholar-astronomer Jñānarāja (circa 1500 C.E.). Toke Lindegaard Knudsen begins with an introduction to the traditions of ancient Hindu astronomy and describes what is known of Jñānarāja’s life and family. He translates the Sanskrit verses into English and offers expert commentary on the style and substance of Jñānarāja's treatise. The Siddhāntasundara contains a comprehensive exposition of the system of Indian astronomy, including how to compute planetary positions and eclipses. It also explores deep, probing questions about the workings of the universe and sacred Hindu traditions. In a philosophical discussion, the treatise seeks a synthesis between the cosmological model used by the Indian astronomical tradition and the cosmology of a class of texts sacred in Hinduism. In his discourse, which includes a discussion of the direction of down and adhesive antipodeans, Jñānarāja rejects certain principles from the astronomical tradition and reinterprets principles from the sacred texts. He also constructs a complex poem on the seasons, many verses of which have two layers of meaning, one describing a season, the other a god's activities in that season. The Siddhāntasundara is the last major treatise of Indian astronomy and cosmology to receive serious scholarly attention, Knudsen’s careful effort unveils the 500-year-old Sanskrit verses and shows the clever quirkiness of Jñānarāja's writing style, his keen use of mathematics, and his subtle philosophical arguments.

Author: John B. Hearnshaw
Publisher: Cambridge University Press
ISBN: 1107031745
Category : Nature
Languages : en
Pages : 385

View

Book Description
A reference for astronomers and historians on astronomical spectroscopy, from the discovery of spectral lines through to the year 2000.

Author: R. Charles Mollan
Publisher: Manchester University Press
ISBN: 1526101939
Category : History
Languages : en
Pages : 378

View

Book Description
This is a revealing account of the family life and achievements of the Third Earl of Rosse, a hereditary peer and resident landlord at Birr Castle, County Offaly, in nineteenth-century Ireland, before, during and after the devastating famine of the 1840s. He was a remarkable engineer, who built enormous telescopes in the cloudy middle of Ireland. The book gives details, in an attractive non-technical style which requires no previous scientific knowledge, of his engineering initiatives and the astronomical results, but also reveals much more about the man and his contributions – locally in the town and county around Birr, in political and other functions in an Ireland administered by the Protestant Ascendancy, in the development and activities of the Royal Society, of which he was President from 1848–54, and the British Association for the Advancement of Science. The Countess of Rosse, who receives full acknowledgement in the book, was a woman of many talents, among which was her pioneering work in photography, and the book includes reproductions of her artistic exposures, and many other attractive illustrations.