Assertion: relativity | /r/HasProperty | developed at the start of the 20th century
Facets:
Source sentences:
text: Relativity is usually thought of as modern physics since it was developed at the start of the 20th century and could only be tested in the realm available to scientists by high technology.
text: Relativity is usually thought of as modern physics since it was developed at the start of the 20th century and could only be tested in the realm available to scientists by high technology.