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Mechanics, cosmology and Mach's principle
KTH, School of Engineering Sciences (SCI), Mechanics, Theoretical and Applied Mechanics.
2013 (English)In: European journal of physics, ISSN 0143-0807, E-ISSN 1361-6404, Vol. 34, no 1, 139-145 p.Article in journal (Refereed) Published
Abstract [en]

It is pointed out that recent cosmological findings seem to support the view that the mass/energy distribution of the universe defines the Newtonian inertial frames, as originally suggested by Mach. The background concepts of inertial frame, Newton's second law and fictitious forces are clarified. A precise definition of Mach's principle is suggested. Then, an approximation to general relativity discovered by Einstein, Infeld and Hoffmann is used and it is found that this precise formulation of Mach's principle is realized provided the mass/energy density of the universe has a specific value. This value turns out to be twice the critical density. The implications of this approximate result are put into context.

Place, publisher, year, edition, pages
2013. Vol. 34, no 1, 139-145 p.
Keyword [en]
Physical Consequences, General-Relativity, Equations, Electromagnetism, Universe, Gravity, Field
National Category
Other Physics Topics
URN: urn:nbn:se:kth:diva-110049DOI: 10.1088/0143-0807/34/1/139ISI: 000312252500023ScopusID: 2-s2.0-84891896384OAI: diva2:585793

QC 20130110

Available from: 2013-01-10 Created: 2013-01-10 Last updated: 2014-02-26Bibliographically approved

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Essén, Hanno
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