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The Cosmic Mystery Tour$
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Nicholas Mee

Print publication date: 2019

Print ISBN-13: 9780198831860

Published to Oxford Scholarship Online: January 2019

DOI: 10.1093/oso/9780198831860.001.0001

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Cosmic Ripples

Cosmic Ripples

Chapter:
(p.27) Cosmic Ripples
Source:
The Cosmic Mystery Tour
Author(s):

Nicholas Mee

Publisher:
Oxford University Press
DOI:10.1093/oso/9780198831860.003.0004

Gravitational waves generated by violent collisions in the distant universe were recently discovered by the LIGO detector. Gravitational waves were predicted by Einstein’s theory of general relativity and are the gravitational equivalent of electromagnetic waves. Because gravity is so much weaker than electromagnetism, only the most violent cosmic events such as black hole mergers produce waves that could conceivably be detected. LIGO is an incredibly sensitive laser interferometer.

Keywords:   black hole, Einstein, general relativity, gravitational wave, LIGO, interferometer

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