eBook PDF Download Digital Library
Author: Ellen Labrecque
Publisher:
Published: 2020-08
Total Pages: 33
ISBN-13: 149668169X
DOWNLOAD EBOOK →"What is a black hole? What is dark matter and what is it made of? How do scientists discover black holes and dark matter if they can't be seen? What do scientists know about these mysterious parts of the universe and what do they still hope to find out? Budding astronomers will learn the answers to these questions and more!"--
Author: David Garfinkle
Publisher: University of Chicago Press
Published: 2009-05-15
Total Pages: 274
ISBN-13: 0226283496
DOWNLOAD EBOOK →If scientists can’t touch the Sun, how do they know what it’s made of? And if we can’t see black holes, how can we be confident they exist? Gravitational physicist David Garfinkle and his brother, science fiction writer Richard Garfinkle, tackle these questions and more in Three Steps to the Universe, a tour through some of the most complex phenomena in the cosmos and an accessible exploration of how scientists acquire knowledge about the universe through observation, indirect detection, and theory. The authors begin by inviting readers to step away from the Earth and reconsider our Sun. What we can directly observe of this star is limited to its surface, but with the advent of telescopes and spectroscopy, scientists know more than ever about its physical characteristics, origins, and projected lifetime. From the Sun, the authors journey further out into space to explore black holes. The Garfinkle brothers explain that our understanding of these astronomical oddities began in theory, and growing mathematical and physical evidence has unexpectedly supported it. From black holes, the authors lead us further into the unknown, to the dark matter and energy that pervade our universe, where science teeters on the edge of theory and discovery. Returning from the depths of space, the final section of the book brings the reader back down to Earth for a final look at the practice of science, ending with a practical guide to discerning real science from pseudoscience among the cacophony of print and online scientific sources. Three Steps to the Universe will reward anyone interested in learning more about the universe around us and shows how scientists uncover its mysteries.
Author: Priyamvada Natarajan
Publisher: Yale University Press
Published: 2016-04-28
Total Pages: 337
ISBN-13: 0300221126
DOWNLOAD EBOOK →A theoretical astrophysicist explores the ideas that transformed our knowledge of the universe over the past century. The cosmos, once understood as a stagnant place, filled with the ordinary, is now a universe that is expanding at an accelerating pace, propelled by dark energy and structured by dark matter. Priyamvada Natarajan, our guide to these ideas, is someone at the forefront of the research—an astrophysicist who literally creates maps of invisible matter in the universe. She not only explains for a wide audience the science behind these essential ideas but also provides an understanding of how radical scientific theories gain acceptance. The formation and growth of black holes, dark matter halos, the accelerating expansion of the universe, the echo of the big bang, the discovery of exoplanets, and the possibility of other universes—these are some of the puzzling cosmological topics of the early twenty-first century. Natarajan discusses why the acceptance of new ideas about the universe and our place in it has never been linear and always contested even within the scientific community. And she affirms that, shifting and incomplete as science always must be, it offers the best path we have toward making sense of our wondrous, mysterious universe. “Part history, part science, all illuminating. If you want to understand the greatest ideas that shaped our current cosmic cartography, read this book.”—Adam G. Riess, Nobel Laureate in Physics, 2011 “A highly readable, insider’s view of recent discoveries in astronomy with unusual attention to the instruments used and the human drama of the scientists.”—Alan Lightman, author of The Accidental Universe and Einstein's Dream
Author: Tom Jackson
Publisher: Gareth Stevens Publishing LLLP
Published: 2018-07-15
Total Pages: 48
ISBN-13: 1538226693
DOWNLOAD EBOOK →What happens when someone or something goes into a black hole? This book introduces some of the major ideas in cosmology, bringing quarks, preons, hypothetical subparticles, pulsars, galaxies, the Big Bang theory, dark energy, and gravitational waves into detailed focus through accessible language and vivid full-color art work. The text includes fascinating sidebars and fact boxes that add extra excitement to this look into deep space phenomena. Whether it's about Stephen Hawking or the James Webb telescope, even the most reluctant readers are sure to enjoy this book.
Author: James Negus
Publisher: Enslow Publishing, LLC
Published: 2018-07-15
Total Pages: 80
ISBN-13: 0766099644
DOWNLOAD EBOOK →On December 26, 2015, the Laser Interferometer Gravitational-Wave Observatory (LIGO) detected gravitational waves generated from merging black holes for the first time in human history. Through an engaging, easily accessible approach, the origins, dynamics, and ultimate fate of black holes are thoroughly unraveled so that students without a scientific background can grasp complex physics theories. This book supports the Next Generation Science Standards' emphasis on scientific collection and analysis of data and evidence-based theories by discussing the methods research universities and space agencies use to explore black holes.
Author: Tom Jackson
Publisher: Science of the Future
Published: 2020-03-05
Total Pages: 49
ISBN-13: 1474777880
DOWNLOAD EBOOK →What is dark matter? What are gravitational waves? From the Big Bang to the Big Rip, from quasars to the Eridanus Supervoid, this book traces the journey so far of scientific discoveries in black holes and other space phenomena, then takes a look at new technical advancements such as the use of infrared signals to study ancient stars.
Author: Sabino Matarrese
Publisher: Springer Science & Business Media
Published: 2011-02-10
Total Pages: 413
ISBN-13: 9048186854
DOWNLOAD EBOOK →This book brings together reviews from leading international authorities on the developments in the study of dark matter and dark energy, as seen from both their cosmological and particle physics side. Studying the physical and astrophysical properties of the dark components of our Universe is a crucial step towards the ultimate goal of unveiling their nature. The work developed from a doctoral school sponsored by the Italian Society of General Relativity and Gravitation. The book starts with a concise introduction to the standard cosmological model, as well as with a presentation of the theory of linear perturbations around a homogeneous and isotropic background. It covers the particle physics and cosmological aspects of dark matter and (dynamical) dark energy, including a discussion of how modified theories of gravity could provide a possible candidate for dark energy. A detailed presentation is also given of the possible ways of testing the theory in terms of cosmic microwave background, galaxy redshift surveys and weak gravitational lensing observations. Included is a chapter reviewing extensively the direct and indirect methods of detection of the hypothetical dark matter particles. Also included is a self-contained introduction to the techniques and most important results of numerical (e.g. N-body) simulations in cosmology. " This volume will be useful to researchers, PhD and graduate students in Astrophysics, Cosmology Physics and Mathematics, who are interested in cosmology, dark matter and dark energy.
Author: Ellen Labrecque
Publisher: Capstone Press
Published: 2020-08
Total Pages: 33
ISBN-13: 1496680758
DOWNLOAD EBOOK →What is a black hole? What is dark matter and what is it made of? How do scientists discover black holes and dark matter if they can't be seen? What do scientists know about these mysterious parts of the universe and what do they still hope to find out? Budding astronomers will learn the answers to these questions and more!
Author: Michael Hawkins
Publisher:
Published: 2006
Total Pages:
ISBN-13:
DOWNLOAD EBOOK →The author concludes that the majority of the material the Universe is made up of is primordial black holes formed by the big bang. He recounts how he came to this conclusion, describing the evidence which solved the modern mystery of dark matter or the missing mass of the Universe and giving a history of the big bang theory. He also demonstrates how tenuous the ideas fought over by astronomers really are.
