TraciB

The theory of relativity was created by Albert Einstein in 1905. It revolutionized the way that people viewed time and space. It did not, however, affect the already existing theories of time in everyday life. He create his second, The general Theory of Relativity, 10 years later in 1915. Albert Einstein created the theory of relativity in 1905. this showed that Newton's Three Laws of Motion were only approximately correct, breaking down when velocities approached that of light. The speed of light is the same for all observers, no matter what their relative speeds. Einsteins Special theory of relativity showed that while Newtons Laws of motion were correct, it was only until motion reached the speed of light that Einseins theory would apply. Albert Einstein created two theorys of relativity in his lifetime, The first, the Special Theory of Relativity, was published in 1905, and the second, The general theory of relativity, wasn't published until 1915. The Special theory of relativity contains the idea that the speed of light is the same for all observers, regardless of their speed. Einsteins Special theory of relativity also compares with Newtons laws of motion, though it is different, Newtons laws aren't neccesarily wrong. They just apply to speeds and velocity in everyday life, whereas Einsteins laws really only become active when reacheing the speed of light.

**Gamma**[[image:http://www2.slac.stanford.edu/vvc/theory/mathfigs/gamma.gif width="15" height="15" caption="Gamma Symbol"]]
The measurable effects of relativity are based on gamma. Gamma depends only on the speed of a particle and is always larger than 1. By definition:

//v// is the speed of the object in question ||
 * [[image:http://www2.slac.stanford.edu/vvc/theory/mathfigs/eq-gamma.gif width="193" height="70" caption="This equation relates to the speed of light, speed of object and constant, gamma"]] || //c// is the speed of light

Works Cited

Dunbar, Brian. "NASA - Relativity." __NASA - Home__. 5 Feb. 2009 .