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
Summer Phillips
Follow the thrilling adventures of an unlikely hero in a world full of danger and intrigue. The author's fast-paced writing and imaginative plot keep you on the edge of your seat. Each character is well-developed, adding depth to the exciting narrative. The twists and turns make for a rollercoaster of emotions. It's an exhilarating read that captures the essence of adventure. Perfect for fans of action-packed stories.
Cedrica Ingram
Follow the heartwarming journey of a group of friends navigating life's challenges together. The author's empathetic writing and well-developed characters create a deeply emotional experience. Each chapter explores themes of friendship, love, and resilience with sensitivity. The plot's twists and turns keep you engaged throughout. It's a story that celebrates the bonds that connect us. Perfect for readers who enjoy stories about friendship and community.
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Experience the emotional journey of a character discovering their true self in this moving novel. The author's empathetic writing and rich character development create a deeply resonant narrative. Each chapter explores themes of identity, acceptance, and love with sensitivity. The plot's twists and turns keep you engaged from start to finish. It's a heartwarming and thought-provoking read. Perfect for readers who enjoy stories about personal growth and self-discovery.
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