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Articles 1 à 20 sur 800
Par Arthur I Miller. 2005
Examines the history of astrophysics in the early twentieth century when the concept of black holes was hotly debated by…
a young graduate student from India and a leading British scientist. Discusses their professional rivalry and its repercussions on their personal lives and the scientific community. 2005Par Robyn Arianrhod. 2005
Combines history, biography, and science to portray the ways in which Einstein's respect for Isaac Newton, Michael Faraday, and James…
Clerk Maxwell helped formulate his theories of relativity. Discusses Maxwell's equations for electricity and magnetism and the relevance of mathematics in building models of physical discovery. 2005Par Joy Hakim. 2005
Discusses the scientists, arguments, and breakthroughs of the Scientific Revolution that occurred between the sixteenth and nineteenth centuries. Explains the…
development of ideas from the tradition of Greek philosophy to the scientific method of observation and experimentation, which spurred discoveries like Isaac Newton's theory of gravity. For grades 5-8. 2005Par Stephen Hawking. 2005
An updated and more accessible version of A Brief History of Time (RC 26996). Emphasizes the concept of a dynamic…
cosmos, incorporating scientific knowledge from research and space exploration--by the Hubble Space telescope and satellites--not available in the previous, 1988 publication. 2005Par Joy Hakim. 2004
Introduces the forefathers of modern science and the discoveries they made in astronomy, math, and physics. Proceeds from creation myths…
to the four elements, geometric principles, ancient cities of learning, and Earth's place in the universe. For grades 5-8 and older readers. 2004Par Gloria Skurzynski. 2004
Discusses the possibilities of identifying and communicating with another life-form in our vast universe. Describes the interconnectedness of research in…
many scientific disciplines to investigate hospitable planets. Includes profiles of scientists dedicated to seeking extraterrestrial intelligence. For grades 5-8. 2004Par Kathleen Weidner Zoehfeld. 1998
Par Hubert Reeves. 2011
" Dans cette suite de conversations avec lune de mes petites-filles, un été, sous le ciel étoilé que nous contemplons…
ensemble, je revis ces soirées du mois daoût avec mes enfants qui me bombardaient de questions, pendant que nous attendions les étoiles filantes. La contemplation de la voûte céleste et le sentiment de notre présence parmi les astres sont la source dun désir partagé den savoir plus sur ce mystérieux cosmos que nous habitons. " Hubert Reeves -- 4e de couvPar Peter D Ward. 2000
Paleontologist/geologist Ward and astronomer Brownlee outline their hypothesis that complex multicellular life--animals and higher plants--"is less pervasive in the universe…
than is...commonly assumed." The two scientists reexamine Earth's history to identify crucial attributes that have allowed the planet's rare, and perhaps unique, evolutionary achievements. 2000Par Hubert Reeves. 2007
"[...] Textes brefs [qui] constituent un véritable tour de force par la simplicité avec laquelle l'auteur présente notre compréhension du…
cosmos sans pour autant masquer la subtilité des notions évoquées : le Big Bang, la courbure de l'Univers, la matière et l'énergie " sombres ", les univers parallèles, le principe anthropique, les trous noirs, etc. Une remarquable mise à jour des plus récentes découvertes de l'astrophysique et de la cosmologie". -- 4e de couvAstronomy professor identifies common misconceptions about the cosmos. Topics range from false notions regarding distant galaxies to erroneous theories about…
what causes tides and seasons and which planet is the hottest. He emphasizes the origins of incorrect ideas, how to avoid them, and how to change them. 2001Par Richard Wolfson. 2003
Physicist explains for nonscientists the underlying principles of Einstein's theory of relativity. Explores the history of ideas that culminated in…
Einstein's vision of a four-dimensional universe of relativistic space-time. The author anticipates frequently asked questions, discussing time travel, curved space, black holes, and new meanings for past and future. 2003Ce volume aborde un domaine controversé à propos de l'effet des ondes électromagnétiques dans notre vie quotidienne. L'essentiel de l'ouvrage…
détaille l'aspect délétère: le quart de celui-ci est consacré à une nouvelle discipline nommée bio-électromagnétisme (effets bénéfiques). L'auteur livre les résultats d'une enquête qui a duré au-delà d'une quinzaine d'annéesPar Stephen Hawking. 2008
"C'est exactement ce que propose ce recueil de sept conférences sur le cosmos et la place que nous y tenons,…
avec cette idée que " la science devrait être compréhensible par tous et pas seulement par quelques spécialistes. " De la théorie de l'expansion de l'Univers à celle du Big Bang en passant par les trous noirs, la direction du temps ou les découvertes de Hubble, Hawking nous convie à un passionnant voyage." -- 4e de couvPar Hervé Ponchelet. 2007
"Si l'on rembobine le film de l'histoire du monde, de l'homme au Big Bang, tout s'enchaîne parfaitement bien. Par le…
jeu de l'évolution biologique, chimique et physique, l'homme apparaît comme l'ultime et imparable aboutissement d'un "projet" en germe dans l'explosion primordiale voici 13,7 milliards d'années. Illusion d'optique ! En réalité, du Big Bang à Homo sapiens, ce ne fut qu'une suite de hasards et de nécessités qui fait de nous, et du monde tel qu'il est, plutôt une incongruité, ou si l'on préfère, un "miracle". De l'explosion originelle, qui manqua de faire "pschitt" comme un pétard mouillé, jusqu'à l'éruption cataclysmique d'un volcan géant à Sumatra, voilà 80 000 ans, qui faillit bien nous rayer de la saga du vivant, Hervé Ponchelet a identifié sept catastrophes principales grâce auxquelles, paradoxalement, nous devons, en dépit de tout, d'être là. C'est cette histoire vraie qui est ici contée, débarrassée des croyances mais intégrant les convergences entre science et mythes, replaçant les découvertes et les découvreurs dans leur contexte et l'évolution des idées, précisément informée mais conçue et rédigée à l'intention du public le plus large. À défaut de savoir où nous allons, sachons mieux d'où nous venons." -- 4e de couvPar Samuel Graydon. 2023
Walter Isaacson's Einstein meets Craig Brown's 99 Glimpses of Princess Margaret , in this innovative biography of the famous physicist…
told in ninety-nine dazzling vignettes. Most of us would agree that Albert Einstein's name is synonymous with "genius" and that his likeness is often used as a shorthand for all scientists, appearing everywhere from cartoons to textbooks. He has become more myth than man. That being the case, how best to capture his essence? In Einstein in Time and Space , talented young science journalist Samuel Graydon answers that question with an illuminating mosaic—99 intriguingly different particles that cumulatively reveal Einstein's contradictory and multitudinous nature. Glimpsed among these shards: a slacker who failed every subject but math, a job seeker who couldn't get hired, a lothario who courted many women, and a charmer who was the life of the party. As brilliant as he was inconsistent, Einstein was simultaneously an avid supporter of the NAACP and the fight for civil rights and someone capable of great prejudice. He was loved by many, known by few, and inspirational to a generation of young physicists. Graydon reveals every corner of Einstein's world: the false reporting that rocketed Einstein to fame nearly overnight, his effect on people he met merely in passing, even the remarkable posthumous journey of the famed physicist's brain. Entertaining, comforting, bolstering, and shocking, Einstein in Time and Space is the unique story of a man who redefined how we view our universe and our place within itPar Barbara Cartland. 1991
Par Georges Charpak. 2002
Par Sidney Yip. 2023
A student-oriented introduction to understanding mechanisms at the atomistic level controlling macroscopic materials phenomena through molecular dynamics simulations.Machine-learning-based computation in…
materials innovation, performance optimization, and sustainability offers exciting opportunities at the mesoscale research frontier. Molecular Mechanisms in Materials presents research findings and insights about material behavior at the molecular level and its impact on macroscopic properties. The book&’s fifteen essays represent author Sidney Yip&’s work in atomistic modeling and materials simulation over more than five decades. The phenomena are grouped into five basic types: fluctuations in simple fluids, crystal melting, plasticity and fracture, glassy relaxations, and amorphous rheology, all focused on molecular mechanisms in base materials.The organizing principle of Molecular Mechanisms in Materials is multiscale modeling and simulation, where conceptual models and simulation techniques are linked across the micro-to-macro length and time scales to control the outcome of specific materials processes. Each essay addresses a specific standalone topic of materials phenomena while also recognizing the larger context of materials science and technology. Individual case studies serve both as standalone essays and companion pieces to each other. Indeed, the global transformation of science and technology is well underway: in his epilogue, Yip discusses the potential of artificial intelligence and machine learning to enhance future materials for societal benefits in the face of global challenges such as climate change, energy sustainability, infrastructure renewal, and nuclear arms control.Par Adam Frank. 2023
“With wit and brio, Frank separates current nonsense about aliens from the serious and fascinating search for extraterrestrial life.” —Carlo…
Rovelli, New York Times bestselling author of Seven Brief Lessons on PhysicsFrom astrophysicist Adam Frank, a little book on the biggest questions in our search for extraterrestrial life, questions we stand ready to answer.Everyone is curious about life in the Universe, UFOs and whether ET is out there. Over the course of his thirty-year career as an astrophysicist, Adam Frank has consistently been asked about the possibility of intelligent life in the universe. Are aliens real? Where are they? Why haven’t we found them? What happens if we do?We’ve long been led to believe that astronomers spend every night searching the sky for extraterrestrials, but the truth is we have barely started looking. Not until now have we even known where to look or how. In The Little Book of Aliens, Frank, a leading researcher in the field, takes us on a journey to all that we know about the possibility of life outside planet Earth and shows us the cutting-edge science that has brought us to this unique moment in human history: the one where we go find out for ourselves.In this small book with big stakes, Frank gives us a rundown of everything we need to know, from the scientific origins of the search for intelligent life, the Fermi Paradox, the Kardashev Scale, the James Webb Telescope, as well as UFOs and their conspiracy theories. Drawing from his own work and that of other scientists studying the possibility of alien life, he brings together the latest scientific thinking, data, ideas, and discoveries to equip us with the critical facts as we stand at what may be the last moment in human history where we still believe we are all alone. This book is about everything we do—and do not—know about life, intelligent or otherwise beyond Earth. In language that is engaging, entertaining and fun, The Little Book of Aliens provides a comprehensive first look at how close we are to finding out if others actually exist—and if they do, what they might be like.Humankind is on the precipice of finding its neighbors. What comes next? No person is better suited to answer that question—and lead the search—than Adam Frank.