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, 16:32, August 16, 2011
mThe 4-space is the other name of our spacetime (fourth component of 4-space being the time making out of 3-dimensional ordinary (x, y, z) space a 4-dimensional continuum t, x, y, z). So the '''curvature of 4-space''' it the same thing as [[curvature of spacetime]].
[[Category: Physics]]