Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physics The generic term of the
special relativity and thegeneral relativity , two theories in physics developed mainly by Albert Einstein at the beginning of the 20th century from which several important results such as the equivalence of matter and energy and theEinstein field equations are derived.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun (physics) the theory that space and time are relative concepts rather than absolute concepts
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