smith1wiki

Theory of Relativity
www.marcellosendos.ch/comics

http://plus.maths.org/latestnews/sep-dec05/Einstein/index.html

media type="youtube" key="wteiuxyqtoM" height="344" width="425" http://www.youtube.com/watch?v=wteiuxyqtoM   The equivalence principle is a key idea of general relativity. It states that when gravity pulls in one direction it's equivalent to an acceleration moving in the opposite direction. An example of this principle is when your in an elevator going up you seem to feel as though you're being pushed into the floor.

But if gravity is relevant to acceleration, and if the measurements of time and space really are affected by motion, then so should gravity. With that in mind, any mass with a gravitational force, has the ability of shifting the time and space around it. An example of this would be that the angles of a triangle would no longer add up to 180 degrees.