Preventa de eBooks de Ciencias

The field of investigation of astronomical spectroscopy is vast and can provide a wealth of information about the celestial objects observed (Planets, stars, nebulae, novae, supernovae, galaxies, quasars) through the light they emit. Indeed, this light can be broken down into an atomic spectrum, and based on its analysis and current knowledge of physics, it is possible to determine various characteristics of the star being studied. This book presents methods and tools used for spectrum analysis and covers topics such as: the measurement of velocity (radial, orbital, rotational, redshift), the evolution over time in certain spectral lines, the explosion of a nova or supernova, the physical nature of an object (is it a planetary nebula? Is it a galaxy?). Spectroscopy also allows for the reconstruction of an image by digitizing the surface of a planetary nebula at a given wavelength. It is also possible to estimate the temperature of a star and even evaluate its density. For each chapter, the author indicates the type of equipment to be used (optics, camera, spectrograph) and explains step-by-step the methodology for producing the necessary data (acquisition, data processing, etc.) using ten concrete examples that the author has tested himself. This book is intended for amateur astronomers who are curious to learn what can be gleaned from a spectrum so that they can then make their own observations and analyses sometimes rivaling those of professionals!

How the effort to build a unified model of the human brain helps us reconsider the tension between unification and pluralism in science and in Europe.The Human Brain Project was launched by the European Commission in 2013 to build a digital research infrastructure that scientists across the world could use to unify neuroscientific knowledge. One of its goals was to build a detailed, large-scale model and simulation of the human brain. But less than a year after its launch, hundreds of scientists signed a letter that questioned the projects governance and the feasibility of its scientific goals. Launched with the intention of unifying the neuroscience community of Europe, the Human Brain Project instead brought the cracks to the surface. Now, following the conclusion of the project, the unified model that the project envisioned has not been built. A Brain for Europe explores why.Tara Mahfoud describes how debates over the political value of unification, pluralism, and integration have shaped debates and practices over how to build models of the brain in Europe. The book draws on multi-sited ethnographic fieldwork in neuroscience laboratories in the UK, France and Germany; project meetings, workshops and conferences in Austria, Spain, Italy, and The Netherlands; and the projects headquarters in Switzerland. The book is an up-close account of how the effort to build a unified model of the human brain serves as a lens through which to view the tension between unification and pluralism in science and in Europe.

"A sweeping tour of the laws of physics, the scope of the universe, and the place of life within it." Sean Carroll, New York Times bestselling author of The Biggest Ideas in the UniverseAn elegant exploration of humanitys continuous search to find the hidden truths of the universe and comprehend our place in the cosmos.We have always looked up at the night sky and wondered. Ever since the ancient Babylonians began to track celestial objects on clay tablets, scientific inquiry has been driven by the innate human desire to understand what is out there, and where we fit into it all.Renowned particle physicist Dr. Sarah Alam Malik, whose research has brought her to the cutting edge of scientific advancement, takes us on a journey through the discoveries that have at once propelled and overturned our perception of the cosmos. From Copernicus launching a helio-centric revolution to Ernest Rutherford uncovering the world inside the atom, to Vera Rubin confirming the existence of dark matter, each generation has built upon, and then upended, the knowledge of those who came before.Even today, as ninety-five percent of the universe remains unknown to us, we cannot help but chase the fundamental truths of our world, as we witness the fiery deaths of faraway suns, probe the nature of dark energy and search for extraterrestrial life in the most unexpected places.Beautifully written and accessible, A Brief History of the Universe (And Our Place in It) is a celebration of our story so far, one of discovery and an endless curiosity that has taken us far beyond the boundaries of the world we know.

A comprehensive introduction to embodied cognition for designers of interactive artifacts, systems, and environments.In this introduction to embodied cognition and the design of interactive systems, A Dialogue of the Senses, Sile OModhrain argues for turning the interaction design process inside out. We cannot design the experiences of those who use our artifacts and devices, she says; we can only put in place the conditions under which users can bring forth, through their actions, an embodied experience of the world that includes the things we build. Our interactions with artifacts and devices are physical interactions, even if partly or wholly simulated.The world our devices bring into being is one that people experience by moving their bodies to elicit changes in the stimuli they pick up through their senses. OModhrain centers the role of movement in interaction design, introducing techniques of motion capture, design practices in movement-based interaction, and considerations of the many perceptual and motor skills that people bring to bear when they interact with their digitally augmented world through devices such as phones, home assistants, and VR gaming controllers.

A moving reflection on the authors father - plus a cat! - this is a beautiful short work of family history from one of our most beloved, iconic writers.Originally published in the New Yorker in 2019, and now presented in a full, unabridged form, Abandoning a Cat is a poignant, self-reflective work by Haruki Murakami.Here he writes about his father, the son of a priest who might have become a priest himself had a clerical error not sent him into the second world war. Murakamis father wrote accomplished haiku and eventually became a teacher. As Haruki grew older and became an adult and then a writer, he and his father found they had little in common. They were later estranged for twenty years, only reconciling on his fathers deathbed.This haunting personal essay is a reflection on what it means to be a father and what it means to be a son - on what it means to be loved and to be abandoned - and also on a particular moment of Japanese history, through the aftermath of the second world war on into the present. Murakami fans may find common themes from beloved novels such as Kafka on the Shore and The Wind-Up Bird Chronicle - but will also be surprised by the raw honesty of this beautiful autobiographical piece.HauntingNew York Times

Birthday parties always make people happy and Alfies neighbour, Mr MacNally, really does need cheering up because his beloved cat, Smoky, has died. Alfie thinks a party might just help, and theres an extra special surprise in store for Bob MacNally. . . . Join Alfie as he tries to keep a secret in this celebration of pets old and new.

First published in 1936, All the Dogs of My Life is a brilliantly written account of all fourteen pet dogs owned by Elizabeth von Arnim throughout her life. With an introduction by Nina Stibbe, bestselling writer and author of Went to London, Took the Dog.From a beloved dachshund to a trouble-seeking Great Dane, via all manner of dogs large and small, obedient and defiant, von Arnim brilliantly captures the bond between dogs and their owners. This witty and often poignant book is the closest the author came to writing a memoir. Despite her frequent exhortations that it wasnt an autobiography, much is revealed about her fascinating life: her marriages, life in Germany, England and Switzerland, her children and her lovers.Part of the Macmillan Collectors Library, a series of stunning, pocket-sized classics bound in real cloth with gold-foiled edges and ribbon markers. These beautiful books make perfect gifts or a treat for any book lover.

Discover long-lost stories of science spanning thousands of years of Life on Earth in this journey through our universes most peculiar properties. Amazon to Zodiac takes readers on a journey through sciences biggest, tiniest, weirdest, and wildest stories from the realms of explorers and inventors to space, evolution, myths, and more through 101 bite-sized chapters. Tour the pyramids, learn forgotten languages, re-invent the wheel, sail the seven seas, meet the dinosaurs, roam the universe, and uncover the truth beyond mysteries. Combining boundless curiosity with inexhaustible skepticism on each and every page, science writer Barry Evans collects the most fascinating tales from our natural world to show that science is not only extremely valuable, but utterly exciting as well.

From the UKs leading forensic scientist and Sunday Times bestselling author of All That Remains and Written in Bone: a gripping exploration of forensic science, told through often shocking real cases to assess its triumphs, failures, and future.No scientist communicates better. Val McDermid, award-winning author of the Detective Karen Pirie seriesFor over forty years, Professor Dame Sue Black has analysed criminal evidence at the highest level. As the UKs leading forensic scientist, she has stood in court as an expert witness, repeatedly putting her research and reputation on the line, all in the name of justice.Now in An Expert Witness she puts forensic science itself on trial.Drawing on shocking real cases and true crime, from historic poisonings to modern sexual offences, Sue Black traces the evolution of forensic science, from early identification methods to more recent breakthroughs such as DNA profiling, Sues own vein identification research, and the emerging role of artificial intelligence in criminal investigation.She shows where science has delivered justice, and where failures have led to devastating consequences, including wrongful convictions such as that of Andrew Malkinson, imprisoned for seventeen years for a crime he did not commit.As she reflects on life serving as an expert witness, Sue looks back at landmark cases to tell the story of forensic science, ask questions for its future, and explain why this book marks the close of a defining chapter in one of the most extraordinary careers in modern forensic science.Praise for Professor Dame Sue Black:Gripping from the start . . . fascinating in its detail of real life cases and written with a narrative that propels you forward to the next page. Dr Richard Shepherd, forensic pathologist and author of Unnatural CausesEngrossing Financial TimesDame Sue Black writes about life and death with great tenderness [and] with impeccable science lucidly explained . . . I am genuinely glad I read this book. Lee Child, bestselling author of the Reacher seriesPart meditation, part popular science and part memoir . . . fascinating Sunday TimesBlack writes with rare precision and compassion Evening StandardFor someone who deals in death every day, Sue Black has a rare ability to make blood and bones come alive. A marvellous writer. Ruth Davidson, SMPUtterly grippingGuardian

From Japans most famous, classic novelist comes a remarkable gem of wit, irony, and feline observationA stray kitten, catapulted to literary fame loudly observes the world of Meiji Japan in all its absurdity. But hes not the only cat in the neighbourhood, and as he rallies against the stupidity of human habit, he grows closer to the sophisticated Miss Calico but he cant hide his own inadequacies for long.BRIEF ENCOUNTERS: classic novellas and captivating stories, to be read in a single sitting or savoured over days

La Terre nous habite autant que nous l’habitons depuis des millions d’années : voici son histoire. Il y a 4,6 milliards d’années, dans un coin du Systèmesolaire, apparaissait une boule de magma batt

El desconocido clásico japonés que despertó la curiosidad del mundo tras Perfect Days, de Wim Wenders: una meditación y una vida en torno al árbol como espejo de lo que amamos.«Aya Koda nació hace má

Ark on the Move is an exciting journey which inspired an international television series based on the authors animal rescue and conservation missions.Even the most cautious of travellers would, I think, be thrilled at the idea of visiting a remote tropical island. There seems to be something about tropical islands that stirs the blood of even the most unadventurous souls.Lying in the Indian Ocean, the islands of Mauritius and Madagascar where millions of years of evolutionary isolation created a flora and fauna unique in the world provide the exotic setting for Gerald Durrells expeditionary rescue work with animals. In his personal and delightful way he entertains, educates and makes a dramatic appeal to us all about the distressing state of these beautiful and endangered species around the world and shows us the serious consequences to life and its future on this earth.

A NEW, FULLY ILLUSTRATED EDITION OF ANDREW MAYS ILLUMINATING GUIDE TO LIFE NOT ON EARTHThe possibility that alien life exists in the universe is among the most profound of human conjectures, which today is being investigated not just by science-fiction writers but by scientists.Astrobiology presents an expert guide to this compelling field of science. It shows how the tell- tale signatures of life on Earth might hold the key to detecting life beyond our planet; explores the many planets beyond our Solar System discovered by NASAs Kepler and TESS missions; and explains alien- hunting touchstones such as Fermis Paradox, the Drake Equation, and the Wow signal.As NASAs rovers burrow into Mars and its probes peer ever further into the cosmos, this illustrated edition combines deep space images with infographics to cast a scientific eye over the most significant of scientific treasure hunts.

A global history of nuclear energy from 1945 to todayand why the atom has failed to become a dominant, cheap, and safe energy source.Nuclear energy is once again being promoted as the means to phase out fossil fuels and solve environmental problems. Yet nuclear energy has rarely delivered on its past promises. Instead, attempts to harness the atom have led to some of the most severe tensions and political struggles in modern history. In Atomic Disenchantment, Per Hogselius argues that the failure of nuclear energy is best explained by the clashes and contradictions in the nuclear industrys attempts to connect with older technological traditions and practices. He looks not only at the Western great powers and larger non-Western countries, but also at smaller countries in Western and Eastern Europe and in the Global South.Hogselius examines the global history of nuclear energy from 1945 to today. Viewing nuclear power as a hybrid technology that combines new nuclear science discoveries with a range of older technological practices, he considers the history of nuclear power to be one of broken promises and unfulfilled visions and ambitions. Analyzing nuclear energy from a global historical perspective provides a necessary tool for understanding the ongoing nuclear debate.

A novel framework for how entrepreneurs can use Bayesian reasoning to make decisions.This edited volume introduces and explores the concept of Bayesian entrepreneurship, a novel framework for understanding entrepreneurial decision-making under uncertainty. It brings together contributions from leading scholars to examine how entrepreneurs form beliefs about opportunities, learn through experimentation, and make strategic decisions.The Bayesian approach emphasizes the critical interaction between an entrepreneurs prior beliefs and their capacity for learning and experimentation to update those beliefs. This dynamic process allows entrepreneurs to formulate and test theories about value creation and capture, attract resources and capabilities, and implement effective entrepreneurial strategies. The volume is organized around four key themes: the foundations and distinguishing features of Bayesian entrepreneurship how entrepreneurs form and update prior beliefs in entrepreneurial decision-making the role of experimentation and learning in entrepreneurial strategy applications to entrepreneurship education and practice Bayesian Entrepreneurship offers both theoretical contributions advancing our understanding of entrepreneurial decision-making and practical insights for entrepreneurs and educators.

In this sumptuous book, Georgianna Lane offers us an exclusive glimpse into the extensive archives of her world-renowned floral photography with over 300 pages of her personal favourites. Georgianna has travelled extensively throughout her career, searching out the very best blooms around the world and documenting them in her unique and recognisable style. Whether prairie planting or formal, whimsical or graphic, rambling roses or rare ranunculus, she searches out the most beautiful floral arrangements and vivid details. Each chapter is accompanied with a detailed text, where Georgianna recalls her trips across the globe, her extraordinary experiences meeting gardeners, farmers, florists and growers and how she selects what flowers to photograph. Every page is packed with intricate beauty and detail, and in each photograph Georgianna explains what drew her to that particular flower, and how she chose to capture the moment. This unmissable book is a an ode to floral beauty by one of the worlds leading floral and travel photographers.

A fresh and eye-opening new explanation of AIand how its focus on specifics is changing our ideas about ourselves and our world.From a Harvard researcher, philosopher, entrepreneur, former comedy writer, and bestselling author.Amid the clamor about AI, Beautiful Particulars poses a unique question: Not how our use of AI will change what we do, but how the idea of AI may already be subtly, yet fundamentally, reshaping how we think about ourselves and our world.In clear, engaging, and even humorous prose, David Weinberger offers a new perspective on how machine learning works and how it may already be changing our basic and deepest ideas. Through lively examples, he shows that AIs successwith all its risks and dangersis taking us past our millennia of reliance on laws and principles by revealing what morality, free will, creativity, causality, knowledge, and even reality itself look like now that were able to let the particulars speak their tiny truthsThe author poses questions not usually asked: What does a coin look like to AI? When AI gives you evidence that the Earth is round, why are its own reasons for saying that so different? Why does an AI image generator create a selfie of ancient Aztec warriors with broad smiles that it believes are historically unlikely? If AI becomes conscious but bodiless, could it still make good moral decisions? Why is the world so much better at being causal than AI could ever understand? How does AI show us that genuine creativity is not about a spark but about moments that feel right? And how can you take the temperature of a joke?Beautiful Particulars offers a newand hopefulperspective on how machine learning works, and how thats already changing how we understand what it means to be human in the age of AI.