Gravity is one of the four fundamental interactions that exist in nature. It also has the distinction of being the oldest, weakest, and most difficult force to quantize. Understanding gravity is not only essential for understanding the motion of objects on Earth, but also the motion of all celestial objects, and even the expansion of the Universe itself. It was the study of gravity that led Einstein to his profound realizations about the nature of space and time and all astrophysical bodies within it. In this Very Short Introduction, Timothy Clifton looks at the development of our understanding of gravity since the early observations of Kepler and Newtonian theory. He discusses Einstein's theory of gravity, which now supplants Newton's, and shows how it allows us to understand why the frequency of light changes as it passes through a gravitational field, why GPS satellites need their clocks corrected as they orbit the Earth, and why the orbits of distant neutron stars speed up. Today, almost 100 years after Einstein published his theory of gravity, we have even detected the waves of gravitational radiation that he predicted. Clifton concludes by considering the testing and application of general relativity in astrophysics and cosmology, and looks at dark energy and efforts such as string theory to combine gravity with quantum mechanics.ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
✔ Author(s): Timothy Clifton
✔ Title: Gravity: A Very Short Introduction (Very Short Introductions)
✔ Rating : 4.7 out of 5 base on (116 reviews)
✔ ISBN-10: 0198729146
✔ Language: English
✔ Format ebook: PDF, EPUB, Kindle, Audio, HTML and MOBI
✔ Device compatibles: Android, iOS, PC and Amazon Kindle
Readers' opinions about Gravity by Timothy Clifton
Audriana Daly
Follow the gripping tale of a detective unraveling a complex web of crime and corruption. The author's detailed writing and intricate plotting make for a suspenseful read. Each clue and revelation adds to the tension, keeping you on the edge of your seat. The characters are well-developed, with motivations that feel real and compelling. The climax delivers a satisfying resolution to the mystery. A must-read for thriller enthusiasts.
Cedrica Ingram
Unravel the secrets of a small town with a dark past in this gripping thriller. The author's atmospheric writing and suspenseful plot make for a page-turner. Each character's hidden motives and secrets add to the tension. The twists and surprises keep you guessing until the very end. It's a chilling and captivating read that you won't want to put down. Perfect for fans of mystery and suspense.
Leeann Little
Discover the hidden stories behind famous works of art in this fascinating book. The author's detailed research and engaging writing bring each piece to life. Each chapter uncovers new insights into the artists' lives and creative processes. The narrative is both informative and captivating, offering a new perspective on familiar artworks. It's a must-read for art lovers and history buffs alike. Perfect for those who appreciate the stories behind the art.
