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Lädt ... Gravity's Engines: How Bubble-Blowing Black Holes Rule Galaxies, Stars, and Life in the Cosmos (2012. Auflage)von Caleb Scharf
Werk-InformationenGravity's engines von Caleb Scharf
Top Five Books of 2013 (1,196) Lädt ...
Melde dich bei LibraryThing an um herauszufinden, ob du dieses Buch mögen würdest. Keine aktuelle Diskussion zu diesem Buch. BTRIPP's review of Caleb A. Scharf's "Gravity's Engines: How Bubble-Blowing Black Holes Rule Galaxies, Stars, and Life in the Cosmos" (1954 words) One of the wonderful things about modern astrophysics (and science in general, I suppose) is that it puts us in our place. I'm not being facetious about this. Four centuries ago, Earth was the center of the universe and Man was the reason it was created about 6,000 years ago. Now we know that the universe has no center, it is unimaginably vast, and our Milky Way Galaxy is only one of hundreds of billions of galaxies, each of which contains a multitude of stars of which our Sun is but one. It's a normal, mid-size star, and although it's been around for a while (about 4.5 billion years, so far), it's only a third the age of a universe, and when our Sun finally dies and takes it planets with it some 5 billion years in the future, the rest of the universe will go on without pause. Gravity's Engines presents this sobering perspective remarkably well by focusing on black holes and how they influence the formation of galaxies and stars and, ultimately, us. This popular-level adventure in astrophysics includes an account of the author's participation in investigating the apparent role of the supermassive black holes at the centers of galaxies in regulating (limiting) the rate of star formation and thus helping determine the character of the universe as we know it. "Breaking just one of the crisscrossing strands of cosmic history and energy that connect us to black holes could subvert the entire pathway to life here on our small rocky planet." (p 209) Zeige 4 von 4 keine Rezensionen | Rezension hinzufügen
"We've long understood black holes to be the points at which the universe as we know it comes to an end. Often billions of times more massive than the Sun, they lurk in the inner sanctum of almost every galaxy of stars in the universe. They're mysterious chasms so destructive and unforgiving that not even light can escape their deadly wrath. Recent research, however, has led to a cascade of new discoveries that have revealed an entirely different side to black holes. As the astrophysicist Caleb Scharf reveals in Gravity's Engines, these chasms in space-time don't just vacuum up everything that comes near them; they also spit out huge beams and clouds of matter. Black holes blow bubbles. With clarity and keen intellect, Scharf masterfully explains how these bubbles profoundly rearrange the cosmos around them. Engaging with our deepest questions about the universe, he takes us on an intimate journey through the endlessly colorful place we call our galaxy and reminds us that the Milky Way sits in a special place in the cosmic zoo--a "sweet spot" of properties. Is it coincidental that we find ourselves here at this place and time? Could there be a deeper connection between the nature of black holes and their role in the universe and the phenomenon of life? We are, after all, made of the stuff of stars"--Provided by publisher.
"Offering a sweeping tour of fantastic physics and cosmic history, Gravity's Engines provides a view of the most fearsome places in the universe, and finally asks what it will take to see the event horizon of a black hole"--Provided by publisher. Keine Bibliotheksbeschreibungen gefunden. |
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Google Books — Lädt ... GenresMelvil Decimal System (DDC)523.8Natural sciences and mathematics Astronomy Astronomical objects and astrophysics StarsKlassifikation der Library of Congress [LCC] (USA)BewertungDurchschnitt:
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