Changes

== Mathematics ==

== Mathematics ==

The central equation of special relativity is:<ref>http://www2.slac.stanford.edu/vvc/theory/relativity.html</ref>

The central equations of special relativity are the [[Lorentz transformation|Lorentz transformations]]:

:γ=<math>\frac{1}{\sqrt{1-\frac{v^2}{c^2}}}</math>, where:

 

* γ is the factor relating relativistic time, mass, and momentum to non-relativistic time, mass, and momentum.

The Lorentz factor, <math>\gamma </math> occurs frequently all over special relativity and is<ref>http://www2.slac.stanford.edu/vvc/theory/relativity.html</ref>

* v is the speed of the object in question

:<math>\gamma = \frac{1}{\sqrt{1-\frac{u^2}{c^2}}}</math>, where:

* <math> \gamma </math> is the Lorentz factor and relates time, mass, and momentum in different [[inertial reference frame|inertial frames of reference]].

* U is the difference in speed between the frames of reference

* c is the [[speed of light]]

* c is the [[speed of light]]