special relativity

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special relativity

The physical theory of space and time developed by Albert Einstein, based on the postulates that all the laws of physics are equally valid in all frames of reference moving at a uniform velocity and that the speed of light from a uniformly moving source is always the same, regardless of how fast or slow the source or its observer is moving. The theory has as consequences the relativistic mass increase of rapidly moving objects, the Lorentz-FitzGerald contraction, time dilatation, and the principle of mass-energy equivalence. Also called special theory of relativity.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌrɛl əˈtɪv ɪ ti)

1. the state or fact of being relative.
a. Also called special relativity. the first part of Einstein's two-part theory, based on the axioms that physical laws have the same form throughout the universe and that the velocity of light in a vacuum is a universal constant, from which is derived the mass-energy equation, E = mc2.
b. Also called general relativity. the second part, a theory of gravitation based on the axiom that the local effects of a gravitational field and of the acceleration of an inertial system are identical.
3. dependence of a mental state upon the nature of the human mind.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.special relativity - a physical theory of relativity based on the assumption that the speed of light in a vacuum is a constant and the assumption that the laws of physics are invariant in all inertial systems
Einstein's theory of relativity, relativity, relativity theory, theory of relativity - (physics) the theory that space and time are relative concepts rather than absolute concepts
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specijalna teorija relativnosti
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References in periodicals archive ?
Science has marched inexorably onward in the 114 years since the publication of Special Relativity. And, since its the trademark of true science, Special Relativity has been constantly poked-at and challenged but has never been found wanting.
Consequently, both the general relativity for the space expansion and the special relativity for the Doppler shifts of spectral lines of atomic particles in the flat space give the same redshifts.
The Theory of Special Relativity changed the fundamentals of theoretical physics and cosmology forever.
In case of usual special relativity (SR), the Hamiltonian equation for massless particles is E = p.
Thus we see that apparent time dilation and space contraction are perfectly valid physical results of Special Relativity, and there is nothing anomalous about them.
The element of time was introduced by Einstein's professor and mathematician Hermann Minkowski who, after reading Einstein's early papers on his 1905 theory of special relativity, "revealed important symmetries in time and space" (Siegfried, 2002, pp.
"There were times when I had to explain general relativity and special relativity to my mom," he said.
AFTER the 1905 publication of his theory of special relativity Albert Einstein embarked on a long and winding path, wrestling with ideas, making mistakes and even turning away from the right answer in the wrong direction.
Einstein's theory of relativity consists of two theories: general relativity (published in 1915) and special relativity (published in 1905).
Special relativity showed that the laws of nature don't depend on how you are moving, as long as it's uniform motion--constant speed in a straight line.

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