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2 - The nature of light

Published online by Cambridge University Press:  05 March 2013

Tony Hey
Affiliation:
University of Southampton
Patrick Walters
Affiliation:
University of Wales, Swansea
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Summary

The factor which finally succeeded, after long hesitation, to bring the physicists slowly around to give up the faith in the possibility that all physics could be founded upon Newton's mechanics, was the electrodynamics of Faraday and Maxwell.

Albert Einstein. Autobiographical notes, 1949

Fields of force

That gravity should be inate, inherent, and essential to matter so that one body may act upon another at a distance through a vacuum and without the mediation of anything else…is to me so great an absurdity that I believe that no man who has in philosophical matters a competent faculty of thinking can ever fall into it.

Isaac Newton, letter to Richard Bentley

Three pictures hung on the wall of Einstein's study – portraits of Isaac Newton, Michael Faraday and James Clerk Maxwell. These three physicists provided the inspiration for Einstein's great works. With the tools provided by Faraday and Maxwell, Einstein eventually overturned Newton's conception of the universe and the very fabric of space and time which had proved itself so successful for over 200 years.

Newton pictured atoms of matter as having various powers of attraction and repulsion, gravity being the most famous such property. In Newton's scheme of things, the Earth attracts the Moon and all other bodies – such as the famous apple -by virtue of its mass. Newton discovered how this attractive force diminished with distance and, by applying his force law to the Sun and the planets of the solar system, he was able to explain the orbits of the planets.

Type
Chapter
Information
Einstein's Mirror , pp. 23 - 45
Publisher: Cambridge University Press
Print publication year: 1997

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  • The nature of light
  • Tony Hey, University of Southampton, Patrick Walters, University of Wales, Swansea
  • Book: Einstein's Mirror
  • Online publication: 05 March 2013
  • Chapter DOI: https://doi.org/10.1017/CBO9781139236942.003
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  • The nature of light
  • Tony Hey, University of Southampton, Patrick Walters, University of Wales, Swansea
  • Book: Einstein's Mirror
  • Online publication: 05 March 2013
  • Chapter DOI: https://doi.org/10.1017/CBO9781139236942.003
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • The nature of light
  • Tony Hey, University of Southampton, Patrick Walters, University of Wales, Swansea
  • Book: Einstein's Mirror
  • Online publication: 05 March 2013
  • Chapter DOI: https://doi.org/10.1017/CBO9781139236942.003
Available formats
×