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 Free Download Gravitational Lenses by Peter Schneider , Jürgen Ehlers , Emilio E. Falco English | PDF | 1992 | 564 Pages | ISBN : 3540665064 | 55.3 MB Light observed from distant objects is found to be deflected by the gravitational field of massive objects near the line of sight - an effect predicted by Einstein in his first paper setting forth the general theory of relativity, and confirmed by Eddington soon afterwards. If the source of the light is sufficiently distant and bright, and if the intervening object is massive enough and near enough to the line of sight, the gravitational field acts like a lens, focusing the light and producing one or more bright images of the source. This book, by renowned researchers in the field, begins by discussing the basic physics behind gravitational lenses: the optics of curved space-time. It then derives the appropriate equations for predicting the properties of these lenses. In addition, it presents up-to-date observational evidence for gravitational lenses and describes the particular properties of the observed cases. The authors also discuss applications of the results to problems in cosmology.  Free Download Gravitation in Astrophysics: Cargèse 1986 by B. Carter, J. B. Hartle English | PDF | 1987 | 403 Pages | ISBN : 0306425904 | 37.7 MB With the discovery of pulsars, quasars, and galactic X-ray sources in the late 60's and early 70's, and the coincident expansion in the search for gravitational waves, rela tivistic gravity assumed an important place in the astrophysics of localized objects. Only by pushing Einstein's solar-system-tested general theory of relativity to the study of the extremes of gravitational collapse and its outcomes did it seem that one could explain these frontier astronomical phenomena. This conclusion continues to be true today. Relativistic gravity had always played the central role in cosmology. The discov ery of the cosmic background radiation in 1965, the increasing understanding of matter physics at high energies in the decades following, and the growing wealth of observations on the large scale structure meant that it was possible to make increasingly detailed mod els of the universe, both today and far in the past. This development, not accidentally, was contemporary to that for localized objects described above.  Free Download Gravitas: Timeless Skills to Communicate with Confidence and Build Trust English | 2024 | ISBN: 1394237332 | 149 Pages | PDF | 3 MB What does the word 'gravitas' mean today? In the world of ancient Rome, it was the manner of trust and respect cultivated by capable, strong leadership. In Gravitas: Timeless Skills to Communicate with Confidence and Build Trust, communications expert Louise Mahler shows how this ancient virtue can help you rethink modern communication and transform your presence and impact as a leader today. 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Free Download Luis Agustín-Hernández, Aurelio Vallespín Muniesa, Angélica Fernández-Morales, "Graphical Heritage: Volume 3 - Mapping, Cartography and Innovation in Education" English | 2020 | pages: 559 | ISBN: 3030479862, 3030479897 | PDF | 251,4 mb This book presents the proceedings of the 18th International Conference on Graphic Design in Architecture, EGA 2020, focusing on heritage - including architectural and graphic heritage as well as the graphics of heritage. The third of three volumes, this book discusses topics related to mapping, cartography and landscape, as well as innovative education methods, particularly in the context of teaching architectural heritage. It covers historical cartography and new cartographies, as well as methods for representing the landscape, and reports on different learning methods and practices, including classroom methods but also those involving more active participation and multidisciplinary and collaborative production. 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It features original documentation studies on historical archives, 3D and solid representation of architectural objects, as well as virtual graphic representation and applications of augmented reality, all documenting and/or reconstructing the present, past and future of architectural objects. As such, this book offers extensive and timely information to architectural and graphic designers, urban designers and engineers, and industrial designers and historians.  Free Download Graphic Horizons: Volume 3 - Graphics for Knowledge English | 2024 | ISBN: 3031575784 | 360 Pages | PDF (True) | 94 MB This book reports on several advances in architectural graphics, with a special emphasis on education, research and heritage. It gathers a selection of contributions to the 20th International Congress of Architectural Graphic Expression, EGA 2024, held on May 27-29, 2024, in Porto, Portugal, with the motto: "Graphic Horizons". This is the third volume of a 3-volume set.  Free Download Graphic Horizons: Volume 1 - Graphics for Analysis and Thought English | 2024 | ISBN: 3031575822 | 428 Pages | PDF (True) | 110 MB This book reports on several advances in architectural graphics, with a special emphasis on education, training, and research. It gathers a selection of contributions to the 20th International Congress of Architectural Graphic Expression, EGA 2024, held on May 27-29, 2024, in Porto, Portugal, with the motto: "Graphic Horizons". This is the first of a 3-volume set. |
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