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ISRN Astronomy and Astrophysics
Volume 2011 (2011), Article ID 131473, 10 pages
http://dx.doi.org/10.5402/2011/131473
Review Article

Understanding Gravity: Some Extra-Dimensional Perspectives

1School of Physics, University of Hyderabad, Hyderabad 500 046, India
2Department of Physics, Baylor University, Waco, TX 76798-7316, USA

Received 4 November 2011; Accepted 13 December 2011

Academic Editor: T. Boller

Copyright © 2011 V. H. Satheeshkumar and P. K. Suresh. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Gravity is one of the most inexplicable forces of nature, controlling everything, from the expansion of the Universe to the ebb and flow of ocean tides. The search for the laws of motion and gravitation began more than two thousand years ago but still we do not have the complete picture of it. In this paper, we have outlined how our understanding of gravity is changing drastically with time and how the previous explanations have shaped the most recent developments in the field like superstrings and braneworlds.