# What is special relativity?

## Special Relativity

Special relativity (SR, also known as the special theory of relativity or STR) is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".

### Some articles on special relativity:

Special Relativity - Relativistic Quantum Mechanics
... Special relativity can be combined with quantum theory to form relativistic quantum mechanics ... It is an unsolved question how general relativity and quantum mechanics can be unified quantum gravitation is an active area in theoretical research ... explained the fine structure of alkaline atoms by using both special relativity and the preliminary knowledge on quantum mechanics of the time ...
Special Relativity (alternative Formulations) - Very Special Relativity
... Ignoring gravity, experimental bounds seem to suggest that special relativity with its Lorentz symmetry and Poincare symmetry describes spacetime ... described as follows The stabilizer of a null vector is the special Euclidean group SE(2), which contains T(2) as the subgroup of parabolic transformations ... Their new symmetry is called Very Special Relativity (VSR) ...
Relativistic Mass Distortion - Conservation Versus Invariance of Mass in Special Relativity - The System Invariant Mass Vs. The Individual Rest Masses of Parts of The System
... Again, in special relativity, the rest mass of a system is not required to be equal to the sum of the rest masses of the parts (a situation which would be analogous to gross mass-conservation in chemistry) ... In special relativity, mass is not "converted" to energy, for all types of energy still retain their associated mass ... Neither energy nor invariant mass can be destroyed in special relativity, and each is separately conserved over time in closed systems ...
Special Relativity (alternative Formulations) - "Single Postulate" Approaches
... For some historical information, see History of special relativity#Spacetime physics and the section "Lorentz transformation without second postulate" for the ... So, the trio of "principle of relativity+Maxwell+numerical values from experiment" gives special relativity and this should be compared with "principle of relativity+second postulate+Maxwell+numerical values ... attention to just the standalone theory of relativity then yes you need the postulate ...
Special Relativity (alternative Formulations)
... As formulated by Albert Einstein in 1905, the theory of special relativity was based on two main postulates The principle of relativity — The form of a physical law is the same in any inertial ... to making local measurements.) There have been various alternative formulations of special relativity over the years ...

### Famous quotes containing the words relativity and/or special:

By an application of the theory of relativity to the taste of readers, to-day in Germany I am called a German man of science, and in England I am represented as a Swiss Jew. If I come to be regarded as a bête noire the descriptions will be reversed, and I shall become a Swiss Jew for the Germans and a German man of science for the English!
Albert Einstein (1879–1955)

An indirect quotation we can usually expect to rate only as better or worse, more or less faithful, and we cannot even hope for a strict standard of more and less; what is involved is evaluation, relative to special purposes, of an essentially dramatic act.
Willard Van Orman Quine (b. 1908)