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Author: John W. Moffat Publisher: Oxford University Press, USA ISBN: 0190650729 Category : Science Languages : en Pages : 233
Book Description
"Black holes are one of the extraordinary phenomena in the universe whose existence was surmised not by observations, but by theory. The black hole is a prediction of Einstein's 1915-1916 gravitational theory, general relativity, which replaced Sir Isaac Newton's gravity theory, published in his famous treatise Principia in 1687. In 1784, Reverend John Michell, a fellow of Queens' College and Professor of Geology at Cambridge University, had already envisioned what we now call black holes. He asked what would happen if a star's gravity were so strong that its escape velocity - the speed at which a rocket, for example, would have to travel to leave the star - exceeded the speed of light? Michell realized that any light emanating from the star would have to fall back to its surface. He speculated that the escape velocity would exceed the speed of light for a very massive star, making the star invisible to an observer"--
Author: John W. Moffat Publisher: Oxford University Press, USA ISBN: 0190650729 Category : Science Languages : en Pages : 233
Book Description
"Black holes are one of the extraordinary phenomena in the universe whose existence was surmised not by observations, but by theory. The black hole is a prediction of Einstein's 1915-1916 gravitational theory, general relativity, which replaced Sir Isaac Newton's gravity theory, published in his famous treatise Principia in 1687. In 1784, Reverend John Michell, a fellow of Queens' College and Professor of Geology at Cambridge University, had already envisioned what we now call black holes. He asked what would happen if a star's gravity were so strong that its escape velocity - the speed at which a rocket, for example, would have to travel to leave the star - exceeded the speed of light? Michell realized that any light emanating from the star would have to fall back to its surface. He speculated that the escape velocity would exceed the speed of light for a very massive star, making the star invisible to an observer"--
Author: Ker Than Publisher: A True Book (Relaunch) ISBN: 9780531228012 Category : Juvenile Nonfiction Languages : en Pages : 0
Book Description
Provides information about black holes, explaining how stars become black holes, looking at the types of black holds, and discussing what is inside a black hole and how scientists study them.
Author: Elena Ioli Publisher: World Scientific ISBN: 9811230897 Category : Juvenile Nonfiction Languages : en Pages : 73
Book Description
This little book describes the past, present and future of black holes through a funny and engaging story involving Grandpa Louie, his two grandchildren and two of their friends.During a beautiful sunny day on the beach, the children play, swim, enjoy their time, and ask a lot of questions to Grandpa Louie, a retired astronomy professor. Who better than him to tell all the secrets of black holes to a group of curious children? Who discovered them? What do 'black holes' mean? Are There different types of black holes? How does a black hole form? What is his fate? How did scientists manage to 'observe' these celestial bodies which, by definition, cannot be seen? At the end, we also bring up the subject of parallel universes, which could exist beyond the horizon of a black hole.This book is suitable for children from 6 to 12 years old.
Author: Carolyn Cinami DeCristofano Publisher: Charlesbridge Publishing ISBN: 1623543088 Category : Juvenile Nonfiction Languages : en Pages : 92
Book Description
A black hole isn't really a hole . . . is it? Get ready to S-T-R-E-T-C-H your mind with this beloved and best-selling science book. Updated with an all-new chapter about the first black-hole image ever! What are black holes, what causes them, and how the heck did scientists discover them? Acclaimed STEM writer Carolyn DeCristofano's playful text shares how astronomers find black holes, introduces our nearest black-hole neighbors, and provides an excellent introduction to an extremely complex scientific topic. Gorgeous space paintings supplement real telescopic images, and funny doodles and speech bubbles keep the content light and fun.
Author: Chris Oxlade Publisher: Capstone Classroom ISBN: 9781403483416 Category : Juvenile Nonfiction Languages : en Pages : 36
Book Description
Explores the phenomenon of black holes, explains why astronomers think they exist, what causes them, what they are like inside, and the search to find black holes in space.
Author: Rajeev Raghuram Publisher: FriesenPress ISBN: 1039149723 Category : Young Adult Nonfiction Languages : en Pages : 100
Book Description
Though discovered by scientists only a few decades ago, black holes have become a major object of public fascination and speculation. But how do black holes actually work? And how do they drive the processes we observe in the universe? Black Holes, the second book in an ongoing astronomy series by Rajeev Raghuram, gives an informed overview of black hole physics, spacetime, and the impact of this phenomenon on our universe. Written for a young adult audience, this book synthesizes the latest scientific discoveries and the equations that describe them, presenting this complex, fascinating information in highly accessible terms. Key topics include how black holes form; how they interact with one another; the methods that scientists use to study them; and the physics of spacetime that explain the structure of black holes and point to the possibility of wormholes—even other universes! Equations fundamental to understanding black holes are explained in detail, and numerous diagrams illustrate what happens inside them and how they relate to time and other universes.
Author: Leonard Susskind Publisher: Little, Brown ISBN: 9780316032698 Category : Science Languages : en Pages : 480
Book Description
What happens when something is sucked into a black hole? Does it disappear? Three decades ago, a young physicist named Stephen Hawking claimed it did-and in doing so put at risk everything we know about physics and the fundamental laws of the universe. Most scientists didn't recognize the import of Hawking's claims, but Leonard Susskind and Gerard t'Hooft realized the threat, and responded with a counterattack that changed the course of physics. THE BLACK HOLE WAR is the thrilling story of their united effort to reconcile Hawking's revolutionary theories of black holes with their own sense of reality-effort that would eventually result in Hawking admitting he was wrong, paying up, and Susskind and t'Hooft realizing that our world is a hologram projected from the outer boundaries of space. A brilliant book about modern physics, quantum mechanics, the fate of stars and the deep mysteries of black holes, Leonard Susskind's account of the Black Hole War is mind-bending and exhilarating reading.
Author: K. Bennett Publisher: Mendon Cottage Books ISBN: 1310786607 Category : Juvenile Nonfiction Languages : en Pages : 37
Book Description
Introduction Space, the final frontier… to explore strange new worlds, to seek out new life,and new civilizations, to boldly go where no man has gone before. ~ Gene Roddenberry *** The universe is full of surprises! We can find amazing things like galaxies, planets, comets, asteroids, moons, meteorites, and more! One of the strangest objects we can find in space is called a… black hole. Have you ever heard of black holes? What do you know about them? Let’s learn more! Black holes are dark areas in space with strong gravity. Not all black holes are black and we cannot see them, but we know they are there. How do we know they exist even though we can’t see them? Scientists study the things that happen around a black hole, and that tells them a black hole is there. The force of a black hole is so strong light cannot escape. Do you know what happens to light when it gets near a black hole? Strong gravity pulls light and everything else into the center. It is so strong that nothing escapes the powerful force, and everything falls in! Black holes come in lots of different sizes. Some are big, and some are small. Some black holes are so big; they are called supermassive black holes. That’s a big, big hole! Black holes affect not only space but time too. How so? Did you know time changes when you get near a black hole? Yes, it does! This is because of Einstein’s theory of relativity. Let’s find out how black holes work and what else we can learn about this mysterious force in the universe!
Author: John W. Moffat
Author: John W. Moffat
Author: Ker Than
Author: Christopher Lampton
Author: David E. Newton
Author: Elena Ioli
Author: Carolyn Cinami DeCristofano
Author: Chris Oxlade
Author: Rajeev Raghuram
Author: Leonard Susskind
Author: K. Bennett