Justin+W


 * Albert Einstein's Thoery of Relativity **

Time and objects are observed in the view of relativity and people are questioning what is going on. Einstein's theory of relativity explains each persons perspective of things. Say the sun it the center of the universe which would mean the earth is rotating relative to the sun. Einstein showed us how momentum and energy must be refined and how quantities, length and time, must change from one observer to another in order to get consistent results. To decide whether his ideas are a correct theory of nature, physicists test whether the predictions of Einstein's theory match observations. Many such tests have been made and the answers Einstein gave are correct every time(UI par 4). A large ball would cause a deformation in the sheet's surface. A baseball dropped onto the sheet will roll toward the bowling ball.

Einstein theorized that smaller masses travel toward larger masses not because they are "attracted" by a mysterious force, but because the smaller objects travel through space that is warped by the larger object.(NCSA par 6) Einstein's earlier theory of time and space, special relativity, proposed that distance and time are not absolute. The ticking rate of a clock depends on the motion and where the observer is located. General relativity proposed that gravity, as well as motion, can affect the intervals of time and of space. The key idea of general relativity, called the equivalence principle, is that gravity pulling in one direction is completely equivalent to acceleration in the opposite direction.



This is what Einstein means when each persons perspective is diffrent. The one on top is what a house would look like if you went by at the speed in a car. The second is if you when by at the speed of light. This is just an example to give a clear view of what this really is.

__**Work Cited**__

Lightman, Alan. "NOVA | Einstein's Big Idea | Relativity (Lightman Essay) |." __PBS__. June 2005. 26 Jan. 2009 .

The intentions of this site are to inform students about what the theory of relativity is as well as the history of it and how society perceived the universe before this theory. It is a well written site that gives more information than solely what the theory is and how it works. This site is relatively recent, updated in 2005. This information was written previously on another PBS website. This information is on the PBS website and is written by Alan Lightman, a physicist, novelist, and professor at MIT.

"General Relativity." __NCSA Web archive bounce page__. 1995. 27 Jan. 2009 .

This website is intended to inform one on Einstein's Theory of Relativity. It is an in depth site that includes information about the Theory of Relativity. Although it has not been updated recently, much of the information is still credible and the links to other sections of the site work well. The NCSA (National Center for Supercomputing Applications), which is used by scientists and engineers throughout the United States, along with the University of Illinois, maintain this site.

"Albert Einstein's Thoery of Relativity." Relativity. 1 Feb. 2009

This website is created to visually describe the theory of relativity in a simple way to understand. It has several examples of the theory and directly convay the idea. This is a relible site because the theory of relativity has nevery changed.