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La conquête du cheval: une histoire génétique (Sciences)
Par Ludovic Orlando. 2023
Une histoire des chevaux et du long compagnonnage entre l'homme et cet animal qui lui a offert un moyen de…
parcourir le monde. Le paléogénéticien retrace cette aventure, vieille de 4.200 ans, depuis les steppes de l'ouest de la Russie et de l'Ukraine, montrant la grande diversité de populations de chevaux, leur évolution et leurs déplacements sur la planète au cours des siècles.De l'autre côté du trou noir (Mammouth rock)
Par Eveline Payette. 2022
Au spectacle de Noël de l’école, Louis propose à ses camarades d’assister à une expérience scientifique exceptionnelle qui permettra de…
vérifier une théorie sur le fonctionnement des trous noirs. En vue de sa démonstration, Louis a modifié l’aspirateur Shoptou de son père pour en accroître la puissance, et l’a intégré dans un appareil complexe. C’est son fidèle ami, le légendaire mammouth rock Mayonnaise, qui servira de cobaye dans cette grande aventure. Mais l’expérience n’est pas sans risques. Qu’y a-t-il de l’autre côté du trou noir? L’imperturbable Louis ne se laissera pas démonter par les découvertes imprévues qu’il fera !Advanced Methods of Joint Inversion and Fusion of Multiphysics Data (Advances in Geological Science)
Par Michael S. Zhdanov. 2023
Different physical or geophysical methods provide information about distinctive physical properties of the objects, e.g., rock formations and mineralization. In…
many cases, this information is mutually complementary, which makes it natural for consideration in a joint inversion of the multiphysics data. Inversion of the observed data for a particular experiment is subject to considerable uncertainty and ambiguity. One productive approach to reducing uncertainty is to invert several types of data jointly. Nonuniqueness can also be reduced by incorporating additional information derived from available a priori knowledge about the target to reduce the search space for the solution. This additional information can be incorporated in the form of a joint inversion of multiphysics data.Generally established joint inversion methods, however, are inadequate for incorporating typical physical or geological complexity. For example, analytic, empirical, or statistical correlations between different physical properties may exist for only part of the model, and their specific form may be unknown. Features or structures that are present in the data of one physical method may not be present in the data generated by another physical method or may not be equally resolvable.This book presents and illustrates several advanced, new approaches to joint inversion and data fusion, which do not require a priori knowledge of specific empirical or statistical relationships between the different model parameters or their attributes. These approaches include the following novel methods, among others: 1) the Gramian method, which enforces the correlation between different parameters; 2) joint total variation functional or joint focusing stabilizers, e.g., minimum support and minimum gradient support constraints; 3) data fusion employing a joint minimum entropy stabilizer, which yields the simplest multiphysics solution that fits the multi-modal data. In addition, the book describes the principles of using artificial intelligence (AI) in solving multiphysics inverse problems. The book also presents in detail both the mathematical principles of these advanced approaches to joint inversion of multiphysics data and successful case histories of regional-scale and deposit-scale geophysical studies to illustrate their indicated advantages.The Milky Way: An Autobiography of Our Galaxy
Par Moiya McTier. 2022
In this approachable and fascinating biography of the galaxy, an astrophysicist and folklorist details everything humans have discovered—from the Milky…
Way's formation to its eventual death, and what else there is to learn about the universe we call home. After a few billion years of bearing witness to life on Earth, of watching one hundred billion humans go about their day-to-day lives, of feeling unbelievably lonely, and of hearing its own story told by others, The Milky Way would like a chance to speak for itself. All one hundred billion stars and fifty undecillion tons of gas of it. It all began some thirteen billion years ago, when clouds of gas scattered through the universe's primordial plasma just could not keep their metaphorical hands off each other. They succumbed to their gravitational attraction, and the galaxy we know as the Milky Way was born. Since then, the galaxy has watched as dark energy pushed away its first friends, as humans mythologized its name and purpose, and as galactic archaeologists have worked to determine its true age (rude). The Milky Way has absorbed supermassive (an actual technical term) black holes, made enemies of a few galactic neighbors, and mourned the deaths of countless stars. Our home galaxy has even fallen in love. After all this time, the Milky Way finally feels that it's amassed enough experience for the juicy tell-all we've all been waiting for. Its fascinating autobiography recounts the history and future of the universe in accessible but scientific detail, presenting a summary of human astronomical knowledge thus far that is unquestionably out of this world. NAMED A BEST BOOK OF 2022 BY PUBLISHERS WEEKLY AND SCIENCENET NAMED A BEST AUDIOBOOK OF 2022 BY BOOKPAGETaking the Quantum Leap: The New Physics for Nonscientists
Par Fred A. Wolf. 1981
World renowned physicist Fred Alan Wolf explains the scientific concepts of quantum mechanics in accessible language for nonscientists.Winner of the…
National Book AwardTaking the Quantum Leap entertainingly traces the history of physics from the observations of the early Greeks through the discoveries of Galileo and Newton to the dazzling theories of such scientists as Planck, Einstein, Bohr, and Bohm. This humanized view of science opens up the mind-stretching visions of how quantum mechanics, God, human thought, and will are related, and provides profound implications for our understanding of the nature of reality and our relationship to the cosmos.“The prose, indeed, is exhilarating, and exhibits a passion to explain—humorously . . . Wolf provides commendable explanations of visions and revisions of atomic models; he is fin, in particular, on the Uncertainty Principle . . . Enjoy the book for its bravura.” —Kirkus ReviewsThis book focuses in detail on data science and data analysis and emphasizes the importance of data engineering and data…
management in the design of big data applications. The author uses patterns discovered in a collection of big data applications to provide design principles for hypothesis generation, integrating big data processing and management, machine learning and data mining techniques. The book proposes and explains innovative principles for interpreting hypotheses by integrating micro-explanations (those based on the explanation of analytical models and individual decisions within them) with macro-explanations (those based on applied processes and model generation). Practical case studies are used to demonstrate how hypothesis-generation and -interpretation technologies work. These are based on “social infrastructure” applications like in-bound tourism, disaster management, lunar and planetary exploration, and treatment of infectious diseases. The novel methods and technologies proposed in Hypothesis Generation and Interpretation are supported by the incorporation of historical perspectives on science and an emphasis on the origin and development of the ideas behind their design principles and patterns. Academic investigators and practitioners working on the further development and application of hypothesis generation and interpretation in big data computing, with backgrounds in data science and engineering, or the study of problem solving and scientific methods or who employ those ideas in fields like machine learning will find this book of considerable interest.Optical Fiber Current and Voltage Sensors (Series in Fiber Optic Sensors)
Par Klaus Bohnert. 2024
Optical Fiber Current and Voltage Sensors is the first book to provide a complete, comprehensive and up to date treatment…
of the domain of fiber optic and polarimetric sensors, covering fundamental operating principles, characteristics, and construction. Written by one of the most recognised experts in polarimetric sensing, Optical Fiber Current and Voltage Sensors begins by covering the fundamentals of polarized light, as well as essential sensor components. The author then goes on to outline various sensor types and their applications, with a focus on sensors for electric phenomena. The chapters then lay out the demands that sensors need to meet, the technical obstacles and limitations which need to be considered. The book also covers comparisons to corresponding traditional instruments, as well as covering alternative non-conventional sensors. This book will be of interest to a broad audience of prospective readers ranging from graduate research students, to researchers in physics and engineering fields, to industry professionals active in the field who wish to learn about the technology and/or are interested in the development of new commercial solutions based on polarimetric-type fiber sensing as well as their use for high voltage current and voltage sensing.Scattering Amplitudes in Quantum Field Theory (Lecture Notes in Physics #1021)
Par Simon Badger, Johannes Henn, Jan Christoph Plefka, Simone Zoia. 2024
This open access book bridges a gap between introductory Quantum Field Theory (QFT) courses and state-of-the-art research in scattering amplitudes.…
It covers the path from basic definitions of QFT to amplitudes, which are relevant for processes in the Standard Model of particle physics. The book begins with a concise yet self-contained introduction to QFT, including perturbative quantum gravity. It then presents modern methods for calculating scattering amplitudes, focusing on tree-level amplitudes, loop-level integrands and loop integration techniques. These methods help to reveal intriguing relations between gauge and gravity amplitudes and are of increasing importance for obtaining high-precision predictions for collider experiments, such as those at the Large Hadron Collider, as well as for foundational mathematical physics studies in QFT, including recent applications to gravitational wave physics.These course-tested lecture notes include numerous exercises with solutions. Requiring only minimal knowledge of QFT, they are well-suited for MSc and PhD students as a preparation for research projects in theoretical particle physics. They can be used as a one-semester graduate level course, or as a self-study guide for researchers interested in fundamental aspects of quantum field theory.The Goldilocks Enigma: Why Is the Universe Just Right for Life?
Par Paul Davies. 2007
An acclaimed physicist and cosmologist considers the multiverse and more: &“Very readable indeed . . . This is Doctor Who, but for real.&” —TheGuardianThe…
Goldilocks Enigma is Paul Davies&’s eagerly awaited return to cosmology, the successor to his critically acclaimed bestseller The Mind of God. Here he tackles all the &“big questions,&” including the biggest of them all: Why does the universe seem so well adapted for life? In his characteristically clear and elegant style, Davies shows how recent scientific discoveries point to a perplexing fact: many different aspects of the cosmos, from the properties of the humble carbon atom to the speed of light, seem tailor-made to produce life. A radical new theory says it&’s because our universe is just one of an infinite number of universes, each one slightly different. Our universe is bio-friendly by accident—we just happened to win the cosmic jackpot. While this &“multiverse&” theory is compelling, it has bizarre implications, such as the existence of infinite copies of each of us and Matrix-like simulated universes. And it still leaves a lot unexplained. Davies believes there&’s a more satisfying solution to the problem of existence: the observations we make today could help shape the nature of reality in the remote past. If this is true, then life—and, ultimately, consciousness—aren&’t just incidental byproducts of nature, but central players in the evolution of the universe. Whether he&’s elucidating dark matter or dark energy, M-theory or the multiverse, Davies brings the leading edge of science into sharp focus, provoking us to think about the cosmos and our place within it in new and thrilling ways.Survival Guide Wissenschaft: (Über-)Lebenstipps für akademische Karrieren
Par Kai Noeske, Benjamin Rott, Katrin Hille. 2023
Survival Guide Wissenschaft – der unverzichtbare Begleiter für angehende Wissenschaftler:innen! Wertvolle Ratschläge, bewährte Strategien und Insiderwissen aus vielen Jahrzehnten akademischer…
Laufbahnen mit Kurven, Ecken und Kanten. Tipps und Tricks, Dos and Don’ts, um wissenschaftliche Karrieren an Universitäten und anderen Forschungseinrichtungen zu starten, zu überleben und erfolgreich voranzutreiben. Von der Forschungsplanung bis zur Bewerbung um Stipendien und Stellen, von der Netzwerkbildung bis zur Work-Life-Balance, aber auch Exit-Strategien – dieser Survival Guide liefert die entscheidenden (Über-)Lebenstipps für ein Leben in Academia.Dogs: Their Fossil Relatives & Evolutionary History
Par Xiaoming Wang, Richard H. Tedford. 2008
Two noted paleontologists present a detailed portrait of the family Canidae across 40 million years of evolution in this illustrated…
volume. After decades of research and analysis, paleontologists Xiaoming Wang and Richard H. Tedford established the modern framework for understanding the evolutionary relationship of canids. Combining their work with Mauricio Antón's reconstructions of both extinct and extant species, Wang and Tedford now present a nuanced and visually stunning portrait of the origin and evolution of canids. The fossil record of the Canidae, particularly those from their birthplace in North America, are the strongest of their kind among known groups of carnivorans. Such a wonderfully detailed evolutionary history makes the canid an ideal model organism for the mapping of predator behavior and morphological specializations. With its innovative illustrated approach to this important branch of animal and fossil study, Dogs provides an unprecedented reference for anyone interested in the evolution of these fascinating animals.Cómo funciona la ciencia (DK How Stuff Works)
Par Dk. 2018
Encuentra respuestas científicas a las preguntas que siempre te has hecho, desde que significa estar vivo hasta por qué explotan…
las cosas.Este libro de ciencia nos desvela todos los secretos del universo. Deslumbra a tus amigos y familiares con respuestas a las preguntas científicas cotidianas, como ¿cómo se mantienen los aviones en el aire? ¿Cómo funciona una computadora? ¡y mucho más!Mediante explicaciones claras, gráficos y esquemas visuales, este libro de ciencia en español explica conceptos científicos que no te enseñaron en la escuela, hasta los últimos descubrimientos y noticias científicas como el descubrimiento del Bosón de Higgs. ¡Verás que esto sí que es ciencia simplificada!Tanto para el estudiante de ciencias como para cualquier persona interesada en ampliar sus conocimientos en el campo científico.Este libro es el compañero ideal de El libro de la ciencia de la serie de Big Ideas (Spanish Edition)Ciencia: la mejor manera de entender el universo¿Qué es la materia, la energía, la vida, el espacio? ¡Estamos rodeados de ciencia! Aprende a identificar y a comprender cómo funciona desde la electricidad hasta la realidad virtual, desde la transmisión genética al envejecimiento. Explora el mundo de las estrellas, las galaxias y descubre cuál es el tamaño del universo. Esta guía sobre la ciencia nos descubre todos los aspectos sobre la existencia humana desde la mirada científica. Comprenderás cómo se forma la luz, el sonido, o la presión. Aprenderás a definir conceptos como la relatividad, la inteligencia artificial, la inteligencia física, la nanotecnología, los virus, la terapia genética, la física cuántica, la clonación e incluso el Big Bang.Una guía de referencia actualizada sobre todos los descubrimientos que nos regala la ciencia a día a de hoy, desde el origen del universo hasta los robots, a través de los siguientes capítulos:La materia.Energía y fuerzas.La vida.El espacio.La Tierra.Cómo funciona la ciencia, pertenece a la colección de libros juveniles en español de Conocimiento de la editorial DK, un rincón de nuestro catálogo destinado a mentes jóvenes curiosas que estén interesadas en conocer más sobre el mundo que les rodea, con disciplinas tales como la filosofía, economía y psicología. Los títulos incluidos en esta colección responden a infinidad de preguntas con un lenguaje sencillo y cercano y se apoyan en formidables ilustraciones y esquemas para ayudar a entender complejos asuntos y teorías que capten el interés del público juvenil, mientras desarrollan sus habilidades lectoras y sus conocimientos generales.The Cosmos: An Eye-Opening Look at Our Sun, Its Planets, and Their Moons (Idiot's Guides)
Par Christopher De Pree. 2014
Major new discoveries in space are made almost weekly and there is so much for any new enthusiast to learn…
and explore. Beginning with the solar system, the Sun, all its planets, major moons, and other features, such as the asteroid belt, Idiot's Guides: The Cosmos is packed with information and features the best photos from various explorations. Beautiful photography and detailed descriptions of the various types of masses are compared to Earth-- making the information as easy to grasp as possible. The book also explores the Milky Way, the various star types, including black holes, galaxy filaments, and much more.Idiot's Guides: The Cosmos is a fascinating and easy-to-understand exploration of the universe. Dozens of stunning, full-color photos highlight the latest discoveries and beauty of space, including the solar system, the Sun, the asteroid belt, the Milky Way, various star types, black holes, and more.Astonish your friends and family with this incredible collection of mind-boggling facts about the scariest animals ever to walk the…
Earth. This unbelievably fascinating dinosaur book for children will teach you all you need to know about prehistoric animals, like which dinosaur had the sharpest teeth, the longest claws, the smallest brain, the largest droppings, and lots more! Did you know that the largest dinosaur was longer than a tennis court but its babies were no bigger than a newborn human baby? That the smallest dinosaur weighed less than a teaspoon of sugar? Or that the largest flying reptile was as tall as a giraffe, with wings the size of a small plane? Children aged 9+ will love all these facts and more, presented either with jaw-dropping CGI illustrations or eye-popping photography – plus additional boxes feature diagrams that make information easy to understand. Celebrate your child's curiosity as they explore:- 1,000 jaw-dropping, mind-blowing facts that will be sure to wow family and friends. - Stunning CGI graphics, fun visual comparisons, and diagrams make stats and facts easy to understand.- Science boxes are illustrated with engaging diagrams.- Photo stories feature additional incredible stories and comparisons.In 1,000 Amazing Dinosaur Facts children can discover the fastest, the slowest, the deadliest, and the downright weirdest dinosaurs ever to roam the planet! This book of mind-blowing dinosaur facts will make the ideal gift for kids who love all things prehistoric, giving a real sense of the colossal scale of dinosaurs and how and where they lived.More in the SeriesIf you like 1,000 Amazing Dinosaur Facts then why not complete the collection? Dive into disgusting facts with 1,000 Amazing Gross Facts and discover the secret science of everything icky and sticky.A day in the life of a Triceratops! Make reading your superpower with DK&’s beautiful, leveled nonfiction.Use your reading superpowers…
to learn all about what happens to a Triceratops when he meets a fierce Tyrannosaurus - a high-quality, fun, nonfiction reader - carefully leveled to help children progress.Dinosaur&’s day is a beautifully designed reader all about a day in the life of a Triceratops - and its scary encounter with a deadly Tyrannosaurus!The engaging text has been carefully leveled using Lexile so that children are set up to succeed. A motivating introduction to using essential nonfiction reading skills. Children will love to find out about the Triceratops, the Tyrannosaurus, and other dinosaurs.My Book of Fossils: A fact-filled guide to prehistoric life (My Book of)
Par Dk, Dean R. Lomax. 2022
Unearth hidden fossils and unleash a new love for all things prehistoric!Learn about the world&’s primeval past through its fascinating…
and wonderful world of fossils. From glistening seashells and mammoth dinosaur teeth to delicate colorful flora, uncover a magnitude of treasures left behind to better understand our primitive past.This intriguing fact-filled guide into ancient times will have you learning about where fossils come from and where they have been found. This primal book about earliest life includes: • A definitive guide to fossils, featuring 50 profiles of the most incredible discoveries in paleontology • A science-focused and fact-packed route into learning about prehistoric life • Top-quality photography to show fossils in fine detail and highlight key features • Age-appropriate with large pictures and clear text • Pronunciation guide for each fossil animal or plant name • Fact files for each featured fossil give the key information, such as size, time period and location This engrossing children's book about fossils and dinosaurs is filled with all you need to know about ancient fossils as well as how to contain recently discovered species. It will help even the biggest fossils fans learn something brand new! This prehistoric book contains remarkably phenomenal photographs that can be studied in detail, as well as pronunciation guides to help with those tricky names.Displayed into plants and animals, there are 50 key fossil profiles, including the beloved favorite dinosaur Triceratops and a magnitude of other remains, like fossil fish teeth. An easy-to-follow visual index provides a quick overview of all the key species in the book, so you can be well on your way to becoming a fossil expert.This is the perfect book for children ages 5 to 7 with a love of fossils and dinosaurs, as well as parents, caregivers and teachers who want a reliable introductory book to fossils and prehistoric life!Be brave as you meet the most incredible creatures to ever walk the Earth in this top-selling book.The ultimate visual…
encyclopedia introduces a huge variety of record-breaking dinosaurs in mind-blowing detail.Dinosaurs: A Visual Encyclopedia charts the entire history of life on our planet, from the very first life forms through the range of prehistoric creatures and the diverse species of the Ice Ages. This curious mixture of the weird and wonderful is shown in stunning expert-verified reconstructed images alongside fascinating fact files and additional information about habitat, diet, and behavior. You might already be able to tell your Tyrannosaurus Rex from Triceratops, but have you ever seen horse-eating birds and millipedes the size of crocodiles? Then look no further.Other topics such as evolution, fossilization, and climate change are explored in-depth to build up a complete picture of the dinosaur era.Dinosaur fans and fossil hunters, what are you waiting for?Everything You Need to Know about Dinosaurs (Everything You Need to Know)
Par Dk, John Woodward. 2014
Discover the amazing world of prehistoric reptiles in this book all about dinosaurs for kids.Embark on a fun, fact-filled dive…
into the prehistoric world with Everything You Need to Know About Dinosaurs. Children will love going back in time and learning about these cold-blooded creatures.Packed with vibrant pictures and lots of fascinating facts, kids can enjoy learning about how dinosaurs survived all over the world and how they adapted to their ancient habitats. Discover the anatomy, habitat and behavior of these prehistoric creatures through fascinating facts that children aged 7+ will love reading about. Alongside, in between, and on top of all that, this riveting dinosaur book also provides ideas for things to make, games to play, quizzes, and amazing facts to share with friends!This dinosaur book for children offers:- An introduction to a whole host of dinosaurs including Stegosaurus, Velociraptor, Pterodactylus and the mighty Tyrannosaurus rex.- Close-ups, quizzes, and games with an exciting take on the amazing world of our cold-blooded friends.- A look at these creatures from all angles – information on habitat and breeding habits, as well as oddities such as which dinosaurs would win in a race, why some dinosaurs were &“boneheads&”, and how scientists uncover the colors of dinosaur feathers. Children aged 7+ can learn all about prehistoric creatures from the very first page of this book, which combines little-known information with engaging text and an exciting design. Each page contains everything kids need to know, and everything they WANT to find out about dinosaurs!Complete the SeriesThis delightful dinosaur book is part of the Everything You Need to Know series of educational books for children and also includes Everything You Need to Know About Snakes and Everything You Need to Know About Frogs!Join the dig for dinosaurs! Make reading your superpower with DK&’s beautiful, leveled nonfiction.Use your reading superpowers to learn all…
about how dinosaurs were discovered - a high-quality, fun, nonfiction reader - carefully leveled to help children progress.Dinosaurs Discovered is a beautifully designed reader all about the history of digging for dinosaurs, and amazing world-wide discoveries The engaging text has been carefully leveled using Lexile so that children are set up to succeed. A motivating introduction to using essential nonfiction reading skills. Children will love to find out about the history of digging for dinosaurs, and the different dinosaurs we now know about.Dinosaur A to Z
Par Dustin Growick. 2015
A catalog of more than 150 dinosaurs and other prehistoric creatures—listed in alphabetical order from Abelisaurus to Zuniceratops—that is perfect…
for children as young as five.Written by American Museum of Natural History educator Dustin Growick, Dinosaur A to Z is a colorful parade of the most exciting creatures that have ever lived and provides a line-up of the biggest, smallest, baddest, nicest, scaliest, and everything-in-between dinosaurs that have been discovered to date, as well as other prehistoric creatures of the air, land, and sea. Specially commissioned CGI images of children alongside the dinosaurs illustrate exactly how big—or small—each one was in comparison, and children can learn how to pronounce dinosaur names and discover the meaning behind each, and learn about different dinosaur shapes, sizes, and meals.Dinosaur A to Z is the perfect first visual dictionary for little dinosaur enthusiasts.