検索キーワード： 宇宙論

In virtually all fields of human endeavor, Classical Athens was so much at the forefront of dynamism and innovation that the products of its most brilliant minds remain not only influential but still relevant to this day. To the ancient Greeks, the cosmos was ordered and harmonious. Consequently, reason and intellect were considered the architects of all art and craftsmanship. The absolute perfection of form was sought in everything and the Greek passion for simplicity, elegance, harmony, and beauty is to be found everywhere, particularly in architecture.

You are cosmically insignificant. You've heard it a thousand times. A pale blue dot. A speck of dust in an infinite void. A brief flicker between two eternities of darkness. This book says: that's wrong. Not sentimentally wrong. Mathematically wrong. Using rigorous information theory, fixed-point mathematics, and the concept of effective complexity developed by Nobel laureate Murray Gell-Mann, The Tiny Giants demonstrates that observers—biological and artificial—contribute a staggering share of the universe's meaningful structure.

Pour retracer l'histoire du Système solaire, Alessandro Morbidelli suit cette règle de Sherlock Holmes : « lorsque vous avez éliminé l'impossible, ce qui reste, si improbable soit-il, est nécessairement la vérité. » En éliminant progressivement les hypothèses les plus simples (les planètes se sont formées sur leurs orbites actuelles) mais démenties par les observations (les orbites des petits corps sont alors inexplicables), Alessandro Morbidelli et ses collègues sont parvenus au « modèle de Nice » pour décrire les déplacements et perturbations des corps du Système solaire.

Rédigés par Becky Smethurst, astrophysicienne à l'université d'Oxford, les dix petits textes qui composent ce livre vous guideront à travers les galaxies et les trous noirs, et vous raconteront pourquoi la matière noire est l'une des énigmes les plus fascinantes du cosmos. Vous apprendrez également ce qu'il y avait avant le Big Bang, pourquoi nous ne sommes peut-être pas seuls dans l'Univers, tout ce que l'on ignore, ce qu'il reste à découvrir et bien d'autres choses.

Piero e Alberto Angela invitano i lettori a un grande viaggio nel Cosmo a bordo della Noos (che in greco antico significa "intelletto"), un'astronave immaginaria che si sposta alla velocità del pensiero. Il viaggio della Noos si basa sulle più recenti conoscenze acquisite dall'astronomia e dall'astrofisica: il veicolo spaziale si posa sulla Luna, su Marte, sorvola i pianeti del nostro Sistema solare, scende su asteroidi e comete, entra fin dentro il Sole per scoprire la sua struttura interna.

By most popular accounts, the universe started with a bang some 13.8 billion years ago. But what happened before the Big Bang? And how do we know it happened at all? Here prominent cosmologist Niayesh Afshordi and science communicator Phil Halper offer a tour of the peculiar possibilities: bouncing and cyclic universes, time loops, creations from nothing, multiverses, black hole births, string theories, and holograms. Along the way, they offer both a call for new physics and a riveting story of scientific debate.

Sie sind die wohl rätselhaftesten Dinger im Universum, beflügeln unsere Fantasie und bereiten der Forschung Kopfzerbrechen: Schwarze Löcher. Seit 100 Jahren hält uns die Vorstellung dieser lichtlosen Weltraum-Monster in Atem. In der ersten Ausgabe von „Erzähl mir alles: Physik" beleuchten wir, wie Schwarze Löcher vom theoretischen Hirngespinst zur astronomischen Tatsache wurden. Wie die Reise ins Innere eines Schwarzen Lochs wirklich aussähe, und wie die Forschung die dunklen Schwergewichte heute am Himmel dingfest macht.

This book offers a rigorous and deliberately restrained examination of one of the most ambitious ideas in contemporary theoretical physics: the holographic principle. Rather than celebrating or rejecting holography, it subjects its claims to disciplined evaluation, asking not whether the mathematics works, but what, if anything, it entitles us to say about reality itself. The analysis proceeds from a simple but often neglected distinction between three levels of theoretical success: mathematical consistency, explanatory power, and ontological entitlement.

The Search for Extraterrestrial Intelligence: A Historical Journey traces humanity’s oldest question across centuries of dreaming, discovery, and scientific determination: Are we alone in the universe? From ancient myth-makers who imagined visitors descending from the heavens, to modern scientists armed with powerful telescopes and AI-driven data pipelines, this audiobook follows the full arc of our quest to find other intelligent life.

In The Allure of the Multiverse, physicist Paul Halpern tells the epic story of how science became besotted with the multiverse, and the controversies that ensued. The questions that brought scientists to this point are big and deep: Is reality such that anything can happen, must happen? How does quantum mechanics "choose" the outcomes of its apparently random processes? And why is the universe habitable? Each question quickly leads to the multiverse. 

Trous noirs, exoplanètes, les nouvelles techniques d'observation en astronomie ont permis d'extraordinaires découvertes. Une résolution beaucoup plus fine des images. Durant les dernières décennies, de nouveaux instruments d'observation situés sur Terre et dans l'espace ont, grâce à des progrès dans la résolution des images, donné lieu à des découvertes extraordinaires. Trous noirs et exoplanètes : des découvertes extraordinaires. Pierre Léna décrit ici ces innovations instrumentales et s'attarde sur deux découvertes majeures récentes.

L'Univers a-t-il une forme ? En s'intéressant au contenu visible de l'univers, aux planètes, aux étoiles et aux galaxies, on oublie parfois le contenant invisible, l'espace lui même. Celui-ci est-il un simple réceptacle passif ? A-t-il une forme, une structure ? Est-il fini ou infini ? Est-il courbe, plat, lisse ou grumeleux ?Une présentation des différents modèles cosmologiques. Jean-Pierre Luminet présente les grandes lignes des démarches cosmologiques actuelles et des formes possibles de l'univers.

Jean Pierre Luminet nous invite à un voyage fascinant qui, de la Grèce antique à nos jours, explore les métamorphoses de l'infini. De manière toujours accessible, il aborde l'infini de l'espace avec la cosmologie, celui des nombres avec les mathématiques et les mystères de l'infiniment petit dans la matière avec la physique quantique.

Un Univers en expansion - La cosmologie est l'étude de l'Univers dans son ensemble. En expansion depuis 15 milliards d'années, son histoire est jalonnée d'événements cosmiques : fabrication de la matière, génération du rayonnement cosmologique, apparition des galaxies... La cosmologie est aujourd'hui devenue une science, relativiste depuis le début du XX° siècle.Une histoire de nos nos connaissances sur l'Univers. Marc Lachièze-Rey retrace ici les grandes lignes de l'évolution des idées et des principes qui fondent nos connaissances sur l'Univers.

One of Scientific American’s Best Books of 2024 One of the world’s leading astrobiologists takes us on an awe-inspiring journey across the cosmos to investigate some of humanity’s most profound questions: Are we alone in the universe? And how did life on Earth begin? We are in a golden age...

Edwin Powell Hubble (November 20, 1889 - September 28, 1953), born in Marshfield, MO, was an American astronomer who played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology. Hubble proved that many objects previously thought to be clouds of dust and gas and classified as "nebulae" were actually galaxies beyond the Milky Way. Hubble's name is most widely recognized for the Hubble Space Telescope, which was named in his honor. The following is a 1945 recording of Hubble's lecture at the New York Philharmonic.

2023 Nautilus Gold Award Examines our emergence as self-aware members of a Universe that is itself a unified and innately sentient entity that exists TO evolve Shares leading-edge scientific breakthroughs and shows how they support traditional visions of Earth as a living being--Gaia...

When asked to explain Relativity simply, Albert Einstein himself once joked, “Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That's Relativity.” But when most normal people without advanced training attempt to study the subject seriously, they’re quickly weighed down by the mathematics…

Brought to you by Penguin. For thousands of years, humans have wondered whether we're alone in the cosmos. Now, for the first time, we have the technology to investigate. The question should have an obvious answer: yes or no. But once you try to find life elsewhere, you realize it is not so...

For Irwin Shapiro, science starts with questions. This book provides a broad and entertaining survey of major scientific discoveries that have changed our views of nature and, in turn, spawned further questions. Shapiro, an award-winning scientist and beloved teacher, separates his inquiry into three parts: looking up at the universe; looking down at the earth and its fossils; and looking in at the story of life. His framework encourages listeners to view science as a detective story—to observe and question nature and natural phenomena, and to base all conclusions on scientific evidence.