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Einstein's Telescope | W. W. Norton & Company
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Einstein's Telescope: The Hunt for Dark Matter and Dark Energy in the Universe
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Available in Russia Shop from Russia to buy this item. It is a much needed service, to general curious public and to the the people "in" the field who need an ambassador to reach out and let people know what we are working on. Astrophysicist Evalyn Gates brings the world of gravitational lensing and the search for the unknown constituents of the Universe to the reader in her book Einstein's Telescope.
Gates has spent many years in this search, and this book is an excellent introduction and advanced discussion, laying the foundation for the work she and others will do over the next decade to unmask some of the great mysteries in cosmology and astrophysics. Gates introduces a brief history of how scientists came to understand that dark matter and dark energy had to be part of our Universe in order to explain a few basic observations.
Once she has offered the reader a framework for why we need to look more deeply at the way our Universe appears, Gates explains just what causes the "Einstein's Telescope" effect. This fascinating technique involves gravitational lensing of distant objects by massive objects sitting closer to the Earth. Often, the lenses are clusters of galaxies, and through the process of lensing more distant galaxies, we can learn how much mass is acting on the light of the distant sources, giving us insight into where dark matter may reside and exactly how it interacts with ordinary mass.
The book explains various theories of dark matter, primarily MACHOs and WIMPs, offers glimpses at the even more mysterious dark energy, for which there are no shortage of wild theories, and eventually goes deep into the cosmic web that may hold clues to the earliest formation of galaxies. Later parts of the book, which may well be the strongest in what is a very solid presentation, describe the multiple experiments ongoing and various theories currently being formulated.
Gates explains how these new techniques and new opportunities may shed light on our understanding of the Universe, its beginnings, and its evolution. Anyone who wants to understand the amazing findings that have begun to trickle out of this astrophysical work and which will continue to become available over the next decade or two will find strong explanations by Gates herein. This section alone makes the entire book worth reading for me.
Gates is an excellent writer who refuses to waste the reader's time. She has a solid grasp of her subject, and better, is highly successful at making the complex scientific concepts approachable by most any reader. Tons of great cutting-edge science is in store for a reader of this book, and those with a strong knowledge of cosmology and astronomy can still find much to learn and enjoy in Telescope.
A handful of excellent images and illustrations are included in the hardback edition which offer the reader tantilizing, beautiful references to Gates' material, including real photographs of some fantastic shots of gravitation lensing. For any science reader, and most especially those who enjoy space sciences, this book is highly recommended as a solid effort to update the reader's understanding of current astrophysical efforts and approaches to this fascinating field. While much of the science is complex, the style makes it easy to digest, without watering down the concepts.
Kindle Edition Verified Purchase. Theoretical physics and cosmology are daunting fields that frequently test common intuitions. As a layman, I approach the topic humbly and with a thirst for visual graphics and analogies that will break down the various conceptual barriers posed by current theories. This book was a satisfying journey through cosmology of the past years with a particular focus on gravitational lensing as a key method that scientists employ today for their discoveries.
Gravitational lensing derives from Einstein's General Relativity. As we learn in detail, general relativity shows that spacetime itself is impacted by surrounding mass and energy. If spacetime were shaped like a trampoline, its shape would change if a massive object stars, galaxies, planets, or in this analogy a bowling ball were placed on it. Light follows this curvature, so the massive object serves almost like a lense between the light source and Earth.
It's a fascinating concept and described with lucid analogies from everyday experiences to help digest the concepts. Gravitational lensing has surprisingly versatility.
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Scientists are able to view light sources of much greater distances than thought possible and evaluate the masses of objects without the need to individually count each star. The mass of these objects proved to be far greater than expected by the amount of mass visualized in conventional telescopes.
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The author shows how scientists confirmed its existence and current attempts thus far to understand it. After discussing the current science of dark matter, she explains the discovery of dark energy in and various attempts to explain the accelerating expansion of galaxies from one another. In both dark matter and dark energy, the reader knows from the introduction that these issues remain unresolved.
In a similar vein, she discusses theories of supersymmetry, string theory, and the cosmological constant as promising theories with observational confirmation still pending ongoing experiments. The author doesn't seem to mind if here book is woefully out of date in years. I enjoyed the "incompleteness" of the book because I felt like an observer on an active journey of scientific discovery with the author and scientific community.
There was even a chapter on inflation theory and the continuing at time of book publication search for gravitational waves in the cosmic background radiation that carried special resonance in light of the BICEP2 trial. I imagine a similar feeling will occur as further theories and discoveries are made about dark matter, dark energy, and the attempts to unite quantum mechanics with gravity.
I recommend this book to anyone interested in understanding the tools and theories of cosmologists today. See all 36 reviews. Most recent customer reviews. Published 5 months ago. Published on May 1, A good read if you are interested Published on April 8, Published on December 7, Published on October 1, Published on June 3, Published on March 15, Published on March 2, Published on January 29, Published on January 15, Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers.
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