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Gravity: A Very Short Introduction

Popular Science
  • Explains the central role of the force of gravity, from everyday effects on Earth, to planetary motion, to its impact on the expansion of the Universe
  • Describes our growing understanding of gravity from Newton to Einstein, and efforts to link gravity with quantum mechanics
  • Considers the significance of the newly discovered gravitational waves

Series: Very Short Introduction Series (VSI) Volume: 512

By: Timothy Clifton(Author)

120 pages, 11 b/w illustrations

Oxford University Press

Paperback | Feb 2017 | #235027 | ISBN-13: 9780198729143
Availability: Usually dispatched within 48 hours
NHBS Price: £7.99 $10/€9 approx

About this book

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 realisations about the nature of space and time. Gravity is not only universal, it is also essential for understanding the behaviour of the Universe, 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, showing 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.


Contents

1: From Newton to Einstein
2: Gravity in the solar system
3: Extrasolar tests of gravity
4: Gravitational waves
5: Cosmology
6: Frontiers of gravitational physics
7: Summary

References
Further Reading
Index


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Biography

Dr Timothy Clifton studied under John Barrow in Cambridge and is now a lecturer at Queen Mary, University of London. He is a specialist in gravitational physics. He has published many research papers on the subject, as well as co-authoring a cover story on gravity in Scientific American.

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