Download or read book Voyage sur les flots de galaxies Laniakea et au del written by Hélène Courtois and published by Dunod. This book was released on 2024-01-10 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Géographes du cosmos, les cosmographes étudient la structure de l'Univers et son évolution. Hélène Courtois, astrophysicienne passionnée, nous fait découvrir sa quête pour cartographier le cosmos. Elle a visité les plus grands téléscopes du monde afin de mesurer la lueur des milliers de galaxies et d'en déduire les distances qui les séparent ainsi que leurs effets gravitationnels. Ces données ont ensuite été traitées et analysées, pour obtenir finalement une image en volume du superamas auquel appartient la Voie lactée, continent extragalactique baptisé Laniakea. Ce livre a reçu le Prix Ciel&Espace du livre d'Astronomie 2017. "Attachez votre ceinture, car dans cet ouvrage, nous allons explorer notre environnement immédiat, jusqu'à 500 millions d'années-lumière."Extrait de la préface de Françoise Combes, astrophysicienne titulaire de la chaire "Galaxies et cosmologie" au Collège de France

Download or read book Voyage sur les flots de galaxies 3e d written by Hélène Courtois and published by Dunod. This book was released on 2020-07-01 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Géographes du cosmos, les cosmographes étudient la structure de l'Univers et son évolution. Dans cette édition actualisée, Hélène Courtois, astrophysicienne passionnée, nous fait découvrir sa quête pour cartographier le cosmos. Elle a visité les plus grands téléscopes du monde afin de mesurer la lueur des milliers de galaxis et d'en déduire les distances qui les séparent ainsi que leurs effets gravitationnels. Ces données ont ensuite été traitées et analysées, pour obtenir finalement une image en volume du superamas auquel appartient la Voie lactée, continent extragalactique baptisé Laniakea. Ce livre a reçu le Prix Ciel&Espace du livre d'Astronomie 2017. "Attachez votre ceinture, car dans cet ouvrage, nous allons explorer notre environnement immédiat, jusqu'à 500 millions d'années-lumière."Françoise Combes

Download or read book Voyage sur les flots de galaxies 2e d written by Hélène Courtois and published by Dunod. This book was released on 2018-03-07 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les cosmographes sont les nouveaux explorateurs. Ils étudient la structure de l'univers et comment s'agencent et évoluent les galaxies qui le constituent. C'est ainsi qu'a été révélée la première carte dynamique moderne de l'univers, avec ses zones vides et ses immenses "continents" extragalactiques. Hélène Courtois, astrophysicienne passionnée, nous fait découvrir sa quête pour cartographier le cosmos. Elle a couru les plus grands télescopes du monde afin de mesurer la lueur de milliers de galaxies et en déduire les distances qui les séparent ainsi que leurs effets gravitationnels. Ces données ont ensuite été traitées et analysées, pour obtenir finalement une image en volume du superamas auquel appartient notre Voie lactée, continent extragalactique de 500 millions d'années-lumière de largeur baptisé "Laniakea".

Download or read book Voyage sur les flots de galaxies written by Caroline Bee and published by . This book was released on 2024-01-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Voyage sur les flots de galaxies written by Hélène Courtois and published by . This book was released on 2016-10-12 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les cosmographes sont les nouveaux explorateurs. Ils étudient la structure de l'univers et comment s'agencent et évoluent les galaxies qui le constituent. C'est ainsi qu'a été révélée en 2014 la première carte dynamique de l'univers, avec ses zones vides et ses immenses "continents" galactiques. Hélène Courtois, astrophysicienne passionnée, nous fait découvrir sa quête pour cartographier le cosmos. Avec Brent Tully, astronome américain, elle a couru les plus grands télescopes du monde afin de mesurer la lueur de milliers de galaxies et en déduire les distances qui les séparent ainsi que leurs effets gravitationnels. Ces données ont ensuite été traitées et analysées, pour obtenir finalement une image en volume du superamas auquel appartient notre Voie lactée, continent galactique de 500 millions d'années de largeur baptisé "Laniakea".

Download or read book Finding Our Place in the Universe written by Helene Courtois and published by MIT Press. This book was released on 2019-05-28 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: An astrophysicist recounts how her team of researchers surfed the cosmos to map our local universe—and discovered the Laniakea supercluster, home of the Milky Way. You are here: on Earth, which is part of the solar system, which is in the Milky Way galaxy, which itself is within the extragalactic supercluster Laniakea. And how can we pinpoint our location so precisely? For 20 years, astrophysicist Hélène Courtois surfed the cosmos with international teams of researchers, working to map our local universe. In this book, Courtois describes this quest and the discovery of our home supercluster. Courtois explains that Laniakea (which means “immense heaven” in Hawaiian) is the largest galaxy structure known to which we belong; it is huge, almost too large to comprehend—about 500 million light-years in diameter. It contains about 100,000 large galaxies like our own, and a million smaller ones. Writing accessibly for nonspecialists, Courtois describes the visualization and analysis that allowed her team to map such large structures of the universe. She highlights the work of individual researchers, including portraits of several exceptional women astrophysicists—presenting another side of astronomy. Key ideas are highlighted in text insets; illustrations accompany the main text. The French edition of this book was named the Best Astronomy Book of 2017 by the astronomy magazine Ciel et espace. For this MIT Press English-language edition, Courtois has added descriptions of discoveries made after Laniakea: the cosmic velocity web and the Dipole and Cold Spot repellers. An engaging account of one of the most important discoveries in astrophysics in recent years, her story is a tribute to teamwork and international collaboration.

Download or read book The Day We Found the Universe written by Marcia Bartusiak and published by Vintage. This book was released on 2010-03-09 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The riveting and mesmerizing story behind a watershed period in human history, the discovery of the startling size and true nature of our universe. On New Years Day in 1925, a young Edwin Hubble released his finding that our Universe was far bigger, eventually measured as a thousand trillion times larger than previously believed. Hubble’s proclamation sent shock waves through the scientific community. Six years later, in a series of meetings at Mount Wilson Observatory, Hubble and others convinced Albert Einstein that the Universe was not static but in fact expanding. Here Marcia Bartusiak reveals the key players, battles of will, clever insights, incredible technology, ground-breaking research, and wrong turns made by the early investigators of the heavens as they raced to uncover what many consider one of most significant discoveries in scientific history.

Download or read book First Light written by Emma Chapman and published by Bloomsbury Publishing. This book was released on 2020-11-26 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astronomers have successfully observed a great deal of the Universe's history, from recording the afterglow of the Big Bang to imaging thousands of galaxies, and even to visualising an actual black hole. There's a lot for astronomers to be smug about. But when it comes to understanding how the Universe began and grew up we are literally in the dark ages. In effect, we are missing the first one billion years from the timeline of the Universe. This brief but far-reaching period in the Universe's history, known to astrophysicists as the 'Epoch of Reionisation', represents the start of the cosmos as we experience it today. The time when the very first stars burst into life, when darkness gave way to light. After hundreds of millions of years of dark, uneventful expansion, one by the one these stars suddenly came into being. This was the point at which the chaos of the Big Bang first began to yield to the order of galaxies, black holes and stars, kick-starting the pathway to planets, to comets, to moons, and to life itself. Incorporating the very latest research into this branch of astrophysics, this book sheds light on this time of darkness, telling the story of these first stars, hundreds of times the size of the Sun and a million times brighter, lonely giants that lived fast and died young in powerful explosions that seeded the Universe with the heavy elements that we are made of. Emma Chapman tells us how these stars formed, why they were so unusual, and what they can teach us about the Universe today. She also offers a first-hand look at the immense telescopes about to come on line to peer into the past, searching for the echoes and footprints of these stars, to take this period in the Universe's history from the realm of theoretical physics towards the wonder of observational astronomy.

Download or read book Paleontology written by David Bainbridge and published by Princeton University Press. This book was released on 2022-02-08 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: An illustrated look at the art and science of paleontology from its origins to today Humans have been stumbling upon the petrified remains of ancient animals since prehistoric times, leading to tales of giant dogs, deadly dragons, tree gods, sea serpents, and all manner of strange and marvelous creatures. In this richly illustrated book, David Bainbridge recounts how legends like these gradually gave rise to the modern science of paleontology, and how this pioneering discipline has reshaped our view of the natural world. Bainbridge takes readers from ancient Greece to the eighteenth century, when paleontology began to coalesce into the scientific field we know today, and discusses how contemporary paleontologists use cutting-edge technologies to flesh out the discoveries of past and present. He brings to life the stories and people behind some of the greatest fossil finds of all time, and explains how paleontology has long straddled the spheres of science and art. Bainbridge also looks to the future of the discipline, discussing how the rapid recovery of DNA and other genetic material from the fossil record promises to revolutionize our understanding of the origins and evolution of ancient life. This panoramic book brings together stunning illustrations ranging from early sketches and engravings to eye-popping paleoart and high-tech computer reconstructions.

Download or read book Miss Leavitt s Stars written by George Johnson and published by WW Norton. This book was released on 2006-05-30 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A short, excellent account of [Leavitt’s] extraordinary life and achievements." —Simon Singh, New York Times Book Review George Johnson brings to life Henrietta Swan Leavitt, who found the key to the vastness of the universe—in the form of a “yardstick” suitable for measuring it. Unknown in our day, Leavitt was no more recognized in her own: despite her enormous achievement, she was employed by the Harvard Observatory as a mere number-cruncher, at a wage not dissimilar from that of workers in the nearby textile mills. Miss Leavitt’s Stars uncovers her neglected history.

Download or read book The First Scientist written by Carlo Rovelli and published by Westholme Pub Llc. This book was released on 2011 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Translated into English for the first time, an award-winning theoretical physicist discusses the theories of Anaximander, the sixth-century BC Greek philosopher, and examines the influence he had on scientific thinking in a historical and philosophical context.

Download or read book The Tesla Way written by Michael Valentin and published by Kogan Page Publishers. This book was released on 2019-08-03 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tesla disrupts the automotive industry by creating many innovative pieces that fit together. Its marketing, production, sales and technology strategies are all notably different from its competitors. The Tesla Way is an elongated case study looking at Tesla's business model and how this can be applied to existing manufacturing and production strategies in other companies. The author also includes case studies from Michelin, Mass and other consumer goods manufacturing companies. The Tesla Way will look at the origins of Tesla, its journey to success, new business models and what will come next. The author includes a mixture of the theory behind the Tesla business model and its applications, examining the combination between the manufacturing world and the digital world. He has also interviewed a cross-section of Tesla's current employees in both the USA and France. At the end of each chapter an interview with a CEO or top manager of an industrial firm is featured: among others, the stories of Luxor Lighting, ThyssenKrupp, Bosch or Kimberley Clarke. There are also insightful questions for managers. Online supporting resources include sample templates for analyzing efficiency of processes on the factory floor.

Download or read book Autonomous and Connected Vehicles written by Dominique Paret and published by John Wiley & Sons. This book was released on 2022-03-28 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: AUTONOMOUS AND CONNECTED VEHICLES Discover the latest developments in autonomous vehicles and what the future holds for this exciting technology In Autonomous and Connected Vehicles, networking experts Dominique Paret and Hassina Rebaine deliver a robust exploration of the major technological changes taking place in the field, and describe the different levels of autonomy possible with current technologies and the legal and regulatory contexts in which new autonomous vehicles will circulate. The book also includes discussions of the sensors, including infrared, ultrasound, cameras, lidar, and radar, used by modern autonomous vehicles. Readers will enjoy the intuitive descriptions of Advanced Driver Assistance Systems (ADAS), network architectures (CAN-FD, FlexRay, and Backbone Ethernet), and software that power current and future autonomous vehicles. The authors also discuss how ADAS can be fused with data flowing over newer and faster network architectures and artificial intelligence to create greater levels of autonomy. The book also includes: A thorough introduction to the buzz and hype surrounding autonomous and connected vehicles, including a brief history of the autonomous vehicle Comprehensive explorations of common issues affecting autonomous and connected vehicles, including regulatory guidelines, legislation, relevant norms and standards, and insurance issues Practical discussions of autonomous vehicle sensors, from DAS to ADAS and HADAS, and VA L3 to L5 In-depth examinations of networks and architecture, including discussions of data fusion, artificial intelligence, and hardware architecture in vehicles Perfect for graduate and undergraduate students in programs dealing with the intersection of wireless communication technologies and vehicles, Autonomous and Connected Vehicles is also a must-read reference for industry professionals and researchers seeking a one-stop reference for the latest developments in vehicle communications technology.

Download or read book The Lean Approach to Digital Transformation written by Yves Caseau and published by CRC Press. This book was released on 2022-05-01 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lean Approach to Digital Transformation: From Customer to Code and From Code to Customer is organized into three parts that expose and develop the three capabilities that are essential for a successful digital transformation: 1. Understanding how to co-create digital services with users, whether they are customers or future customers. This ability combines observation, dialogue, and iterative experimentation. The approach proposed in this book is based on the Lean Startup approach, according to an extended vision that combines Design Thinking and Growth Hacking. Companies must become truly "customer-centric", from observation and listening to co-development. The revolution of the digital age of the 21st century is that customer orientation is more imperative -- the era of abundance, usages rate of change, complexity of experiences, and shift of power towards communities -- are easier, using digital tools and digital communities. 2. Developing an information system (IS) that is the backbone of the digital transformation – called “exponential information system” to designate an open IS (in particular on its borders), capable of interfacing and combining with external services, positioned as a player in software ecosystems and built for processing scalable and dynamic data flows. The exponential information system is constantly changing and it continuously absorbs the best of information processing technology, such as Artificial Intelligence and Machine Learning. 3. Building software “micro-factories” that produce service platforms, which are called “Lean software factories.” This “software factory” concept covers the integration of agile methods, tooling and continuous integration and deployment practices, a customer-oriented product approach, and a platform approach based on modularity, as well as API-based architecture and openness to external stakeholders. This software micro-factory is the foundation that continuously produces and provides constantly evolving services. These three capabilities are not unique or specific to this book, they are linked to other concepts such as agile methods, product development according to lean principles, software production approaches such as CICD (continuous integration and deployment) or DevOps. This book weaves a common frame of reference for all these approaches to derive more value from the digital transformation and to facilitate its implementation. The title of the book refers to the “lean approach to digital transformation” because the two underlying frameworks, Lean Startup and Lean Software Factory, are directly inspired by Lean, in the sense of the Toyota Way. The Lean approach is present from the beginning to the end of this book -- it provides the framework for customer orientation and the love of a job well done, which are the conditions for the success of a digital transformation.

Download or read book Atlas of Africa written by Agence Française de Développement and published by Routledge. This book was released on 2021-07-07 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This innovative Atlas of Africa, by the Agence Française de Développement, offers comprehensive insights into contemporary Africa through the use of full-colour maps, charts, graphics and text which demonstrate and explain Africa’s growing importance in the world and its demographic, economic, social and environmental transformation, while also outlining the challenges that the continent faces. The three sections, offering new perspectives on the continent, comprise: Taking Full Measure of Africa – examining the major economic, demographic, social and political transformations that Africa has undergone in a short space of time. A Multifaceted Continent with Shared Challenges – looking at the major intraregional economic, demographic, environmental and social dynamics that are currently shaping the continent. Africa Inventing Itself and Taking up the Key Challenges of Tomorrow – an overview of the challenges that Africa is currently facing and will need to face in the future, including the environment and climate change, social cohesion and demographic issues, economic development and governance. Full-colour maps, charts and graphics cover such wide-ranging topics as economic development, urbanization, education, the rule of law, gender, the blue economy, regional organizations, energy and culture, to form a volume which offers a wide-ranging overview in graphic form of Africa in the world today, of interest to all those studying, working in or with Africa, and those with a general interest in the continent.

Download or read book Evolution written by Jean-Baptiste de Panafieu and published by Seven Stories Press. This book was released on 2007 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE book on how we came to be what we are. Unprecedented in its appraoch, teh number and diversity of the species presented and the quality and diversity of its photographs, this is spectacular,elegant, mysterious, grotesque. Skeletons of the vertebrates that inhabit the earth today carry with them the imprint of an evolutionary process that has lasted several billion years. A dual approach, scientific and aesthetic, combines stunning photographs of whole or part skeletons with a short text that illuminates chosen themes of evolution.

Download or read book The Discovery of Cosmic Voids written by Laird A. Thompson and published by Cambridge University Press. This book was released on 2020-12-10 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: The large-scale structure of the Universe is dominated by vast voids with galaxies clustered in knots, sheets, and filaments, forming a great 'cosmic web'. In this personal account of the major astronomical developments leading to this discovery, we learn from Laird A. Thompson, a key protagonist, how the first 3D maps of galaxies were created. Using non-mathematical language, he introduces the standard model of cosmology before explaining how and why ideas about cosmic voids evolved, referencing the original maps, reproduced here. His account tells of the competing teams of observers, racing to publish their results, the theorists trying to build or update their models to explain them, and the subsequent large-scale survey efforts that continue to the present day. This is a well-documented account of the birth of a major pillar of modern cosmology, and a useful case study of the trials surrounding how this scientific discovery became accepted.