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Unified Theories and Disparate Things

Published online by Cambridge University Press:  28 February 2022

Margaret Morrison*
Affiliation:
University of Toronto

Extract

In both philosophical writing on science and scientific practice itself there has been a long standing interest in theories and explanatory frameworks that unify various phenomena. In the history of physics the most successful theories are often those that supposedly show how diverse effects can be understood as aspects of a single underlying principle or cause. For example, Maxwell's electrodynamics unified electromagnetism and optics by providing a theoretical demonstration that light and electromagnetic waves have the same velocity and are manifestations of the same kind of process. More recently in the 1970's Glashow, Weinberg and Salam produced a unified description of both electromagnetic and the weak interactions. This electroweak theory successfully describes electromagnetic interactions as well as data from a variety of electroweak processes including scattering and number of different particle collisions.

Type
Part XII. Unity and Disunity in Physics and Biology
Copyright
Copyright © 1995 by the Philosophy of Science Association

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Footnotes

1

I would like to thank Paul Forster for valuable comments. Support of research by the SSHRC is gratefully acknowledged.

References

Aitchinson, I.J.R. and Hey, A.J. (1989), Gauge Theories in Particle Physics. Bristol: Adam Hilger.CrossRefGoogle Scholar
Cartwright, N. (1994), “The Patchwork of Laws” Proceedings of the Aristotlean Society.Google Scholar
Collins, P.D., Martin, A.D. and Squires, E.J. (1989), Particle Physics and Cosmology. New York: John Wiley.CrossRefGoogle Scholar
Dupre, J. (1993), The Disorder of Things. Cambridge, MA: Harvard Press.Google Scholar
Glashow, S. (1961), “Partial Symmetries of Weak Interactions”, Nuclear Physics: 22, 579-88.CrossRefGoogle Scholar
Goldstone, J., Salam, A. and Weinberg, S. (1962), “Broken Symmetries”, Physical Review: 127, 965-70.CrossRefGoogle Scholar
Higgs, P.W. (1964a), “Broken Symmetries, Massless Particles and Gauge Fields”, Physics Letters: 12, 132-33.CrossRefGoogle Scholar
Higgs, P.W. (1964b), “Broken Symmetries and the Masses of Gauge Bosons”, Physical Review Letters: 13, 508-9.CrossRefGoogle Scholar
Mills, R. (1989), “Gauge Fields”, American Journal of Physics: 57, 493507.CrossRefGoogle Scholar
Moriyasu, K (1983), An Elementary Primer for Gauge Theory. Singapore: World ScientificCrossRefGoogle Scholar
Weinberg, S. (1967), “A Model of LeptonsPhysical Review Letters: 19, 1264-66.CrossRefGoogle Scholar