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Essay:Problems in Cosmology (view source)
Revision as of 20:20, September 3, 2011
, 20:20, September 3, 2011→Symmetric metric tensor of 4D spacetime
===Symmetric metric tensor of 4D spacetime===
===Symmetric metric tensor of 4D spacetime===
I don't even know why Wheeler assumed a symmetric metric tensor of spacetime while Einstein said it ''must be'' non symmetric. Just Wheeler dropped it from Einstein's papers in his biography<ref>Einstain, A., ''"On the generalized gravitation theory"'', April 1950 issue of ''"Scientific American"''.</ref>.
I don't even know why Wheeler assumed a symmetric metric tensor of spacetime while Einstein said it ''must be'' non symmetric. Wheeler just dropped it from Einstein's papers in his biography<ref>Einstain, A., ''"On the generalized gravitation theory"'', April 1950 issue of ''"Scientific American"''.</ref>.
==Sociology==
==Sociology==