Assertion: relativity's theory | /r/HasProperty | special
Facets:
Source sentences:
text: The theory is "special" in that it only applies in the special case where the spacetime is "flat", that is, the curvature of spacetime, described by the energy-momentum tensor and causing gravity, is negligible.[note 2]
text: You explain that Einstein actually published relativity in two parts: the “special” theory in 1905 and the “general” theory in 1915.