Gravitational Waves

Document Type

Article

Publication Date

1-1-2004

Abstract

In elementary physics presentations, one learns about electricity and magnetism, and also about gravity. There appear striking similarities between Newton's law of gravitational attraction and Coulomb's law of attraction between charges. There are also obvious differences, the most immediate one being that in gravitation all masses are positive and always attract each other, whereas in electromagnetism charges may attract or repel, depending on their signs. We also know today that Newton's theory of gravity is not considered an entirely correct description of the gravitational field, particularly when fields are time dependent and intense. The currently accepted theory of gravity is Einstein's theory of general relativity.

Publication Source (Journal or Book title)

Encyclopedia of Mathematical Physics Five Volume Set

First Page

582

Last Page

586

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