Kategoria BISAC: Science >> Space Science - Cosmology

Here is the essential companion to Welcome to the Universe, a New York Times bestseller that was inspired by the enormously popular introductory astronomy course for non science majors that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught together at Princeton. This problem book features more than one hundred problems and exercises used in the original course--ideal for anyone who wants to deepen their understanding of the original material and to learn to think like an astrophysicist.

Whether you're a student or teacher, citizen scientist or science...

Here is the essential companion to Welcome to the Universe, a New York Times bestseller that was inspired by the enormously popular introductory astronomy course for non science majors that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught together at Princeton. This problem book features more than one hundred problems and exercises used in the original course--ideal for anyone who wants to deepen their understanding of the original material and to learn to think like an astrophysicist.

Whether you're a student or teacher, citizen scientist or science...

Contemporary ideas of nature were largely shaped by schools of thought from Western cultural history and philosophy until the present-day concerns with environmental change and biodiversity conservation. There are many different ways of conceptualising nature in epistemological terms, reflecting the tensions between the polarities of humans as masters or protectors of nature and as part of or outside of nature.

The book shows how nature is today the focus of numerous debates, calling for an approach which goes beyond the merely technical or scientific. It adopts a threefold...

Contemporary ideas of nature were largely shaped by schools of thought from Western cultural history and philosophy until the present-day concerns with environmental change and biodiversity conservation. There are many different ways of conceptualising nature in epistemological terms, reflecting the tensions between the polarities of humans as masters or protectors of nature and as part of or outside of nature.

The book shows how nature is today the focus of numerous debates, calling for an approach which goes beyond the merely technical or scientific. It adopts a threefold...

This book is a treatise on time and on background independence in physics. It first considers how time is conceived of in each accepted paradigm of physics: Newtonian, special relativity, quantum mechanics (QM) and general relativity (GR). Substantial differences are moreover uncovered between what is meant by time in QM and in GR. These differences jointly source the Problem of Time: Nine interlinked facets which arise upon attempting concurrent treatment of the QM and GR paradigms, as is required in particular for a background independent theory of quantum gravity. A sizeable proportion...

The Big Bang was not a bang—and it was not so big—neither was it the start of the universe.

The universe started many trillions of years before the big bang and it was in no hurry to prepare for the event that formed our part of the universe.

This book describes the events leading up to the big bang including the formation of the building blocks of matter, how the properties of matter like mass and energy were formed.

These unobservable events of the original universe are described with graphic detail. There is an inescapable logic to each stage and phase...

This book is for anyone who has found solace in the forests, meadows and wilderness. Johnson sees--and conveys to the reader--that the natural world is a mentor, curative and friend. Her writing encourages us to slow down, appreciate the earth's rich beauty, and, in the process, become found.
Being lost isn't always a bad thing--indeed Cathy Johnson helps us see that it can be the adventure of a lifetime. In this book, the Missouri native sets out on a quest through the forests and trails of her region, searching not only for answers, but for life's bigger and broader...

This thesis discusses the construction of an effective field theory (EFT) for non-relativistic Majorana fermions, shows how to use it to calculate observables in a thermal medium, and derives the effects of these thermal particles on the CP asymmetry.

The methods described in this thesis are the only ones to date that allow a systematic and effective description of the non-relativistic dynamics of a heavy Majorana fermion at finite temperature. The CP asymmetry is studied for hierarchical and nearly degenerate heavy-neutrino masses and the analysis includes the treatment of...

This thesis explores the connection between gravity and thermodynamics and provides a unification scheme that opens up new directions of exploration. Further elaborating on the Hawking effect and the possibility of singularity avoidance, the author not only discusses the information loss paradox at a broader level but also provides a possible solution to it. As the final frontier, it describes some novel effects arising from the microscopic structure of spacetime.

Taken as a whole, the thesis addresses three major research areas in gravitational physics: it starts with...