Preventa de eBooks de Física

Dr Sheila Kanani is here to explain ten of the most EXTRAORDINARY ideas in science and introduce the incredible brains that you never knew were behind them.Each chapter explores one important idea: how it works, why its important, and the real story of how it was discovered. Did you know for example that Isaac Newton was influenced by scientists from the Islamic Golden Age? Youll also hear about the unbelievable accidents behind some of these amazing ideas, as well as the mysteries that scientists are still trying to solve.With stunning illustrations from Liz Kay, this beautiful treasury is perfect for curious kids to dip in and out of, and is packed with fascinating facts.The ideal gift for budding scientists aged 812 (and the adults in their lives, too!).

How corporate ownership of the electricity grid matters to state-level renewable energy policymaking.Historically (and for the foreseeable future), most public policy action in the United States to combat the global climate crisis has taken place at the state level. Former President Joe Bidens administration marked a significant departure from that trend, as his policies pursued a strategy of electrify everything (transportation, buildings, and industry). But who owns the electricity system that is the linchpin of such a strategy, and how does this ownership affect the policy preferences of interest groups at the state level? Owning the Green Grid addresses these questions and more through an in-depth study of a quarter century of renewable electricity policymaking in seven states.Drawing on legislative and regulatory texts, interviews, and archival material, Joshua Basseches shows how the investor-owned utilities (IOUs) that provide electricity to three-fourths of the country have succeeded in designing policies that serve environmental aims sometimes but these companies shareholders always. Grappling with the impact of political partisanship and in-state energy economy, the author finds that although these factors do matter, it is the structure of a states utility sector that has the most consistent impact on the interest group politics of these policies. The book offers lessons for the politics of the clean energy transition going forward, and while those related to corporate political power may be troubling, others provide hope that climate politics need not be as polarized as it is perceived to be today.

An ethnography of U.S. nuclear waste policy, and how to understand contemporary societies attempts to establish good relations with the future.Contemporary societies are often criticized for their incapacity to account for the long term. Nuclear Remains asks what happens when a society decides to think long termexamining the US efforts to hold present and distant futures together.Focusing on the case of the US nuclear waste program, Baak Saraç-Lesavre argues that no temporal orientation is inherently ethical; what matters is how temporal orientations construed as desirable get translated into action.To analyze how concerned actors seek to establish good relations between past, present, and future, Saraç-Lesavre introduces the problem of rendez-vous frameworktracing how temporal gaps are identified and resolutions formulated and inscribed in different forms of arrangements. Her multisited ethnographic research takes readers from Congressional debates over fundingto reconcile accountability to and immunity from politicsto Carlsbad, New Mexico, where local actors have been trying to keep their community attached to nuclear futures.Over time, these arrangements face tests. They are barely ever considered au rendez-vous when meeting contemporary conditions, yet they produce significant effects: material, economic, political, and moral relations, and ultimately, societies themselves. This framework applies broadly to cases where temporal relations are at stake: climate change adaptation, government of commons, pension schemes, energy transition, and care systems.

This will book will broaden your horizons ... We cannot hope to understand the diversity of the universe if we fail to accept the diversity of what it is to be a human being Robin InceWhat if the world around us is far richer than we can perceive?In Invisible Rainbows, astrophysicist and science communicator Dr Alfredo Carpineti reveals the extraordinary hidden universe beyond the limits of human vision and how we have learnt to harness it. From the emanations of powerful cosmic explosions in gamma-rays to galaxies glowing in radio waves, he shows how every colour we see is just one note in the vast symphony of light. Featuring conversations with LGBTQIA+ astronomers and scientists from around the world, Carpineti focuses on their pivotal but often invisible contribution to the evolving field of astronomy, and how our identities can shape the way we look at the universe. Blending awe-inspiring science with reflections on perception, diversity and wonder, Invisible Rainbows changes the way we see ourselves and the cosmos.

Oppenheimer à la plage s’appuie sur la vie fascinante de Robert Oppenheimer, figure emblématique de la physique moderne et du nucléaire, pour vulgariser les enjeux et les avancées majeures de l’énerg

Depuis la nuit des temps, La Lune veille sur nous, illuminant le ciel de sa lumière argentée. Aujourd’hui, un nouveau chapitre s’ouvre. La Lune n’est plus seulement un astre lointain et mystérieux. D

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!

Jamais lHumanité na aussi bien compris le cosmos.Les observations des grands télescopes et des satellites de toute dernière génération semblent confirmer les principales théories scientifiques. Et po

A boundary-breaking astrophysicist reimagines the universeand our place within itin this audacious journey through the Nine Realms of the cosmos.This book explains the universe and then quietly explains you. Which is unfair, because I was just trying to read about space. . . . Smart, funny, and unexpectedly moving.Sarah Silverman, comedianThe universe gave rise to everything: stars and cells, minds and memories, purpose and pain. But it doesnt care about us. It follows its own rules. And now, according to Dr. Hakeem Oluseyi, we finally understand enough about those rules to ask the big questions like we mean it: Why do we exist? Are we alone? How did we get here? What comes next? Andperhaps most urgentlyis there reason to hope?Heck yeah, there is!Dr. Oluseyi is no ordinary scientist. A former street kid turned world-renowned cosmologist, he realized something bold: The story of existence can be told as a passage through nine interwoven realmseach revealing a new layer of cosmic truth.Theres the Middle Realm, where we live; the Realm of Life, where organisms flourish across the vastness of space; the Cosmological Realm, where galaxies dance and collide; the Dark Realm, dominated by unseen energy and invisible forces; the Quantum Realm, where reality defies intuition; the Temporal Realm, where time begins, flows, and perhaps ends; the Multiverse Realm, where our universe may be one among many; the Realm Beyond Horizons, where observation breaks down; and the Realm of Imagination, where insight, curiosity, and creativity shape our understanding of it all.In Why Do We Exist?, Dr. Oluseyi cracks open these realms with clarity, humor, and radical honesty, bridging cutting-edge physics, personal narrative, and philosophy. The result is a blueprint for understanding reality itself and a surprising case for human potential in an indifferent cosmos.This isnt just a science book. Its a survival manual for the universally curious.

From the author who proved our intentions shape our reality, an awe-inspiring scientific detective story revealing the mysteries of soundimpacting everything within and around us, from our cells and brains to other living things, our relationships and even the cosmos.Specific sounds create major effects on the human mind and body, and there are both "good" sounds (or "God notes") capable of instantly transporting human beings into an altered state, or healing all manner of illness, and "bad notes" (such as from seismic rumblings, container ships, solar flares or wind turbines), causing distress or illness.The God Notes takes readers through a mind-expanding and paradigm-busting scientific detective story of the universe as one intergalactic sonic superorganism, revealing that Rhythm, vibration and sound are responsible for many molecular functions in the body, from chemical reactions and nervous system messengering to the activity of proteins and collective brain activity. Plants can "hear"; certain sounds help them grow and also ward off predators. The sun, the planets, pulsars and even black holes emit rhythmic sounds now thought to contribute to the growth of entire galaxies and to have a profound effect on life on earth. A hidden "musical score," based on the work of the British mathematical code-buster Alan Turing, underpins every part of our vibrating universe, a vast physical patterning across all natural phenomena. The God Notes is first book to explain just how the sounds around us and the sounds we make affect our lives, and the tools it offers can bring peace, balance, and harmony into our lives.