(physics) the theory that space and time are relative concepts rather than absolute concepts
Einstein's theory of relativity, relativity theory, theory of relativity
Disclaimer: Urduwire.com is only the source of Urdu Meta News (type of Google News) and display news on “as it is” based from leading Urdu news web based sources. If you are a general user or webmaster, and want to know how it works? Read More