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This book is a gentle introduction for all those wishing to learn
about modern views of the cosmos. Our universe originated in a
great explosion - the big bang. For nearly a century cosmologists
have studied the aftermath of this explosion: how the universe
expanded and cooled down, and how galaxies were gradually assembled
by gravity. The nature of the bang itself has come into focus only
relatively recently. It is the subject of the theory of cosmic
inflation, which was developed in the last few decades and has led
to a radically new global view of the universe. Students and other
interested readers will find here a non-technical but conceptually
rigorous account of modern cosmological ideas - describing what we
know, and how we know it. One of the book's central themes is the
scientific quest to find answers to the ultimate cosmic questions:
Is the universe finite or infinite? Has it existed forever? If not,
when and how did it come into being? Will it ever end? The book is
based on the undergraduate course taught by Alex Vilenkin at Tufts
University. It assumes no prior knowledge of physics or mathematics
beyond elementary high school math. The necessary physics
background is introduced as it is required. Each chapter includes a
list of questions and exercises of varying degree of difficulty.
Kosmologie fur alle, die mehr wissen wollen Dieses Sachbuch richtet
sich an alle, die genauer wissen wollen, wie die Kosmologie heute
unser Universum, dessen Anfang - den Urknall - und moegliches Ende
erklart. Es nimmt Sie mit auf die Suche der Wissenschaft nach
Antworten auf die letzten kosmischen Fragen: Ist das Universum
endlich oder unendlich? Hat es schon immer existiert? Wann und wie
ist es entstanden - und wird es jemals enden? Die Autoren, die
beide zu kosmologischen Fragestellungen forschen, bieten Ihnen eine
leicht nachvollziehbare und konsistente Darstellung moderner
kosmologischer Ideen. Sie erfahren alles uber die Grundlagen der
Kosmologie und das, was wir uber den Urknall und unser
beobachtbares Universum wissen, uber Hintergrunde aus der
Teilchenphysik und den aktuellsten Stand der Wissenschaft zu
Inflation und Co. Dabei wird Ihnen auch die eine oder andere Formel
prasentiert - aber Sie benoetigen dafur keine Vorkenntnisse, die
uber die Mathematik der Mittelstufe hinausgehen, und den
notwendigen physikalischen Hintergrund dazu bekommen Sie gleich
mitgeliefert. Nach der Lekture dieses Buches wissen Sie also nicht
nur, was die Physik heute uber unser Universum und den ganzen Rest
weiss, sondern auch warum.
A Leading Figure in the Development of the New Cosmology Explains
What It All Means
Among his peers, Alex Vilenkin is regarded as one of the most
imaginative and creative cosmologists of our time. His
contributions to our current understanding of the universe include
a number of novel ideas, two of which--eternal cosmic inflation and
the quantum creation of the universe from nothing--have provided a
scientific foundation for the possible existence of multiple
universes.
With this book--his first for the general reader--Vilenkin joins
another select group: the handful of first-rank scientists who are
equally adept at explaining their work to nonspecialists. With
engaging, well-paced storytelling, a droll sense of humor, and a
generous sprinkling of helpful cartoons, he conjures up a bizarre
and fascinating new worldview that--to paraphrase Niels Bohr--just
might be crazy enough to be true.
This book is a gentle introduction for all those wishing to learn
about modern views of the cosmos. Our universe originated in a
great explosion - the big bang. For nearly a century cosmologists
have studied the aftermath of this explosion: how the universe
expanded and cooled down, and how galaxies were gradually assembled
by gravity. The nature of the bang itself has come into focus only
relatively recently. It is the subject of the theory of cosmic
inflation, which was developed in the last few decades and has led
to a radically new global view of the universe. Students and other
interested readers will find here a non-technical but conceptually
rigorous account of modern cosmological ideas - describing what we
know, and how we know it. One of the book's central themes is the
scientific quest to find answers to the ultimate cosmic questions:
Is the universe finite or infinite? Has it existed forever? If not,
when and how did it come into being? Will it ever end? The book is
based on the undergraduate course taught by Alex Vilenkin at Tufts
University. It assumes no prior knowledge of physics or mathematics
beyond elementary high school math. The necessary physics
background is introduced as it is required. Each chapter includes a
list of questions and exercises of varying degree of difficulty.
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