9780192806727.pdf

THE PRAGUE PAPERS 199 Next determine v(2,2), the frequency of the same* spectral line produced at 2, measured with U 2. One will ...

200 RELATIVITY, THE GENERAL THEORY A as 7 X 10'° cm, M « 2 X 1033 g, and a = 0?87 (Einstein found (K'83). This is the answer to ...

THE PRAGUE PAPERS 2O1 lie. 1912. Einstein in No Man's Land Another eight months passed before Einstein made his next move in the ...

2O2 RELATIVITY, THE GENERAL THEORY All the same, Einstein continued to adhere to flat space. It is perhaps significant that, imm ...

THE PRAGUE PAPERS 203 is valid in every mass-free static gravitational field.' The next assumption concerns the modification of ...

204 RELATIVITY, THE GENERAL THEORY stein? Why would he ever write about a static gravitational field coupled to a nonstatic Maxw ...

THE PRAGUE PAPERS 205 mechanics. That, too, seens to me to be a naive theory, and I think people should try to start all over ag ...

206 RELATIVITY, THE GENERAL THEORY Let us summarize the Prague papers.* By the spring of 1912, Einstein knew of the red shift an ...

THE PRAGUE PAPERS 207 Kl. A. Kleiner, letter to an unidentified colleague, January 18, 1911. The original is in the Staatsarchiv ...

12. The Einstein-Grossmann collaboration In memoriam: Marcel Grossmann 12a. From Prague to Zurich Grossmann appeared in previous ...

THE EINSTEIN-GROSSMANN COLLABORATION 209 as to whether he might be interested in returning to Zurich, this time to the ETH. Gros ...

210 RELATIVITY, THE GENERAL THEORY that Einstein should accept his post in Zurich cheerfully and in good spirits [LI]. Soon ther ...

THE EINSTEIN-GROSSMANN COLLABORATION 211 until now I have been unable to penetrate beyond the statics of gravitation' [El 3]. So ...

212 RELATIVITY, THE GENERAL THEORY at that time that Riemann had studied the foundations of geometry in an even more profound wa ...

THE EINSTEIN-GROSSMANN COLLABORATION 213 the great transition to Riemannian geometry must have taken place during the week prior ...

214 RELATIVITY, THE GENERAL THEORY equivalence [principle] can hold only for infinitely small systems [and] that there- fore Bon ...

THE EINSTEIN-GROSSMANN COLLABORATION 215 we have The pu are in general time-dependent fields which satisfy pu(t;fi) = (^5) W. In ...

2l6 RELATIVITY, THE GENERAL THEORY lem of the rigid body until 1916 [E27]. Could it be, however, that Horn's formal- ism had giv ...

*For an account of the precursors of Eotvos and of the latter's experiments, see [W2]. For a descrip- tion of improved results o ...

2l8 RELATIVITY, THE GENERAL THEORY Of particular interest for EG is the covariant divergence of a second-rank tensor T" rwm * Fo ...