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General theory of Relativity by S. P. Puri

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6

Gravitational Waves

6.1 INTRODUCTION

General relativity and electrodynamics have profound similarities and yet fundamental differences1,2. In this connection, it may be interesting to mention some historical analogies between the two fields.

The tremendous success of Maxwell’s equations did not rest only on their incorporating all the laws of electricity and magnetism in addition to Lorentz force equation, but also on their basis in 1873 James Clerk Maxwell was able to predict the existence of electromagnetic waves consisting of the periodic variation of electric and magnetic fields and carrying energy and propagating with speed c in vacuum. It was in 1887 that Heinrich Hertz both generated and detected the electromagnetic waves. Then in 1901, ...

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