Sidelights on Relativity

Sidelights on Relativity

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5
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Sidelights on Relativity by Albert Einstein

Published:

1921

Pages:

31

Downloads:

8,045

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Sidelights on Relativity

By

5
(1 Review)
Contains Ether and the Theory of Relativity, and Geometry and Experience

Book Excerpt

s conceived by Newton, by Fresnel, and by Lorentz. Mach's ether not only conditions the behaviour of inert masses, but is also conditioned in its state by them.

Mach's idea finds its full development in the ether of the general theory of relativity. According to this theory the metrical qualities of the continuum of space-time differ in the environment of different points of space-time, and are partly conditioned by the matter existing outside of the territory under consideration. This space-time variability of the reciprocal relations of the standards of space and time, or, perhaps, the recognition of the fact that "empty space" in its physical relation is neither homogeneous nor isotropic, compelling us to describe its state by ten functions (the gravitation potentials g_(mn)), has, I think, finally disposed of the view that space is physically empty. But therewith the conception of the ether has again acquired an intelligible content, although this content differs widely from that of

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