Assertion: relativity's theory | /r/HasProperty | the effects of gravity
Facets:
Source sentences:
text: Albert Einstein released his special theory of relativity in 1905, but it took until 1915 for him to release his general theory of relativity that does include the effects of gravity.
text: Einstein’s general theory of relativity (1916) again makes use of a four-dimensional space-time, but incorporates gravitational effects.