Vous vous posez des questions sur l'espace-temps, la gravité et la téléportation, voire sur la probabilité de croiser votre double dans un trou de ver ? Eh bien, ce livre est fait pour vous.Après le succès de Tout ce que nous ne savons pas encore (2018), les auteurs se proposent dans ce nouvel opus de répondre avec humour à nos interrogations sur l'Univers. Des plus pratiques - qu'est-ce qui nous empêche de voyager jusqu'aux étoiles ? - aux plus existentielles - combien de temps l'humanité survivra t-elle ? -, en passant par les plus loufoques - pouvons-nous réarranger les particules de notre chat pour le transformer en chien ? -, toutes ces questions révèlent les étonnants aspects de la réalité.Une merveilleuse introduction aux dernières découvertes sur le cosmos... et une bonne façon de les éprouver !
Pas une année sans que les prédictions des physiciens ne soient vérifiées, de l'existence du boson de Higgs à celle des ondes gravitationnelles. Mais cette victoire cache pourtant une surprenante vérité:nous ne savons rien (ou presque)!Des exemples? La composition de 95% de l'Univers reste une énigme, tout comme ce qu'il s'est vraiment passé durant le Big Bang. Et pourquoi est-il impossible d'aller plus vite que la lumière? Quelle est l'origine des rayons cosmiques qui bombardent la Terre en permanence? Mystère!Non content d'exposer avec la plus grande clarté le peu que nous savons déjà sur l'infiniment petit et l'infiniment grand, cet ouvrage fait le point sur les grands défis lancés à la science. Il reste tant à découvrir... et c'est heureux!
En permanence sont vérifiées des hypothèses et théories scientifiques et les auteurs font le point sur les assertions actuelles en cosmologie. Pourtant infinies sont les inconnues énoncées dans l'ouvrage, les scientifiques cherchant à comprendre la nature de l'espace temps comme la composition de l'Univers, la source des rayons cosmiques ou les possibilités de vie extraterrestre.
Prepare to learn everything we still dont know about our strange and mysterious universe. Humanity's understanding of the physical world is full of gaps. Not tiny little gaps you can safely ignore --there are huge yawning voids in our basic notions of how the world works. PHD Comics creator Jorge Cham and particle physicist Daniel Whiteson have teamed up to explore everything we don't know about the universe: the enormous holes in our knowledge of the cosmos. Armed with their popular infographics, cartoons, and unusually entertaining and lucid explanations of science, they give us the best answers currently available for a lot of questions that are still perplexing scientists, including: * Why does the universe have a speed limit? * Why aren't we all made of antimatter? * What (or who) is attacking Earth with tiny, superfast particles? * What is dark matter, and why does it keep ignoring us? It turns out the universe is full of weird things that don't make any sense. But Cham and Whiteson make a compelling case that the questions we can't answer are as interesting as the ones we can. This fully illustrated introduction to the biggest mysteries in physics also helpfully demystifies many complicated things we do know about, from quarks and neutrinos to gravitational waves and exploding black holes. With equal doses of humor and delight, Cham and Whiteson invite us to see the universe as a possibly boundless expanse of uncharted territory that's still ours to explore.
B>Youve got questions: about space, time, gravity, and your odds of meeting your older self inside a wormhole. All the answers you need are right here./b>br>br> As a species, we may not agree on much, but one thing brings us all together: a need to know. We all wonder, and deep down we all have the same big questions. Why cant I travel back in time? Where did the universe come from? Whats inside a black hole? Can I rearrange the particles in my cat and turn it into a dog?br>br> Physics professor Daniel Whiteson and scientist-turned-cartoonist Jorge Cham are experts at explaining science in ways we can all understand, in their books and on their popular podcast, Daniel and Jorge Explain the Universe. With their signature blend of humor and oh-now-I-get-it clarity, Jorge and Daniel offer short, accessible, and lighthearted answers to some of the most common, most outrageous, and most profound questions about the universe theyve received.br>br> This witty, entertaining, and fully illustrated book is an essential troubleshooting guide for the perplexing aspects of reality, big and small, from the invisible particles that make up your body to the identical version of you currently reading this exact sentence in the corner of some other galaxy. If the universe came with an FAQ, this would be it.
In our small corner of the universe, we know how some matter behaves most of the time and what even less of it looks like, and we have some good guesses about where it all came from. But we really have no clue what's going on. In fact, we don't know what about 95% of the universe is made of. So what happens when a cartoonist and a physicist walk into this strange, mostly unknown universe? Jorge Cham and Daniel Whiteson gleefully explore the biggest unknowns, why these things are still mysteries, and what a lot of smart people are doing to figure out the answers (or at least ask the right questions). While they're at it, they helpfully demystify many complicated things we do know about, from quarks and neutrinos to gravitational waves and exploding black holes. With equal doses of humour and delight, they invite us to see the universe as a vast expanse of mostly uncharted territory that's still ours to explore. This is a book for fans of Brian Cox and What If . This highly entertaining highly illustrated book is perfect for anyone who's curious about all the great mysteries physicists are going to solve next.