BenR

= Theory of Relativity   = =  = = =  Einstein’s Theory of Relativity and Theory of gravity has a great impact on society today because they are usable theories that work. Constant attacks from other scientists and theories over the years has only failed in disproving the Theory of Relativity and the Theory of Gravity hasn't been challenged yet. We can tell that they work through the piles of physical and mathematic evidence given by many researchers like SLAC National Accelerate Labs, Einstein, and NASA.  There has been a very long history of arguments over the theory of relativity ever since it was first devised by that famous patent clerk Albert Einstein so many years ago. Many people wonder about the validity of the Theory of Relativity and argue their own personal variations. It states that, in the universe, there is no perfect frame of reference because the planets are always rotating and moving through the universe. It also is used to describe the movement of particles when they move close to the speed of light. According to SLAC, "There are two parts to the theory. One is that the speed of light is the same for all observers, no matter what their relative speeds. The second is that the laws of physics are the same in any inertial frame of reference. (Theoretical Basis for Special Relativity)" This means that if an object isn't accelerating, then the observations will be the same for every viewer. Another one of Einstein's equations dealing with the speed of light, and probably his most famous is Energy = Mass times C (the speed of light) squared. With this equation, he was able to calculate mass defects in the chemical world and also able to find a correlation of mass at super high speeds being turned into energy. SLAC takes into account both the Theory of relativity and also E=MC squared when observing particles at super high speeds.  At SLAC National Accelerator Laboratory, there is a machine that moves particles close to the speed of light. It is then observed that those particles exhibit far different behavior than the same particles at lower speeds. This goes along with Einstein's theory of relativity. It states that, in order to get accurate measurements for physical properties (like time and length), the quantities must change from one observer to another because of the lack of the perfect point of view. The only exception to this rule is when particles move rear the speed of light in which case the speed is the same for all observers. For most physics equations, the momentum (p) of particles can be mathematically calculated with the equation p=Mass X Velocity. "When speed of the object gets closer to the speed of light, we have to modify this definition to p = gamma (mass X Velocity). (Theoretical Basis for Special Relativity)" gamma is the coefficient created by Einstein to try to describe the motion of high-speed particles. SLAC studies and uses these equations and observations in order to try to perfect this great theory. However, there is a simpler theory that isn't taken into account when using E=MC squared, and it was the theory that made Einstein famous.  The great theory, Einstein's Theory of Relativity is the more refined theory off of the original which originally got him noticed as a genius. It was his Theory of Gravity, or General Relativity which was created in November of 1919 when he was a mere a patent clerk. It started with a simple experiment where he used the Theory of Gravity to correctly guess the amount of light that had been affected by the suns gravity. When his idea worked, the physics community got its first break through is a while. "General relativity was the first major new theory of gravity since Isaac Newton's more than 250 years earlier. (Relativity and the Cosmos.)" Once again, his theory stated that quantities like time and distance were not universally absolute, and that the quantitative data depended on the observer. This time however, it was proposed that gravity could affect those measurements. He created the equivalence principal as part of his theory that stated if an object experienced motion in one direction, it would also experience an equal force of gravity, only in the opposite direction. For example "An elevator accelerating upwards feels just like gravity pushing you into the floor. (Relativity and the Cosmos)" The theory would also explain why people aren't flung off of the earth. We experience the power of gravity and it is stronger than the force that the rotating of the earth exerts on us. Since we see how gravity works differently in all places and gravity affects measurements like acceleration, then it must be true that acceleration is different in all places. That is the fundamental reasoning behind Einstein theory of relativity, specifically the Theory of Gravity.

 The last source to use the theory of relativity is the National Aeronautic Space Association, or NASA. NASA believes the same things that Albert Einstein did in that relativity is beyond human calculation, but we can still use it for principals of physics. Before Einstein, another physicist, Newton described movement as absolute. "By Newton's laws, two frames of reference moving with constant velocity relative to each other observe exactly the same physical behavior.(The Theory of Relativity)" However, from what we have learned about relativity from Einstein's theory is that there is no way to tell if the two frames of reference are exact. Einstein's theory also fights Newton's theory and states that the two frames of reference mentioned before do not exhibit the same behavior because there is no perfect frame of reference. When the laws of electricity were discovered, some scientists tried to use them to figure out if an object was in a frame of motion using electromagnetic affects. These trials failed to figure out whether or not the object was in a frame of motion and later, Einstein created an explanation why. He stated that the electromagnetic experiment failed because absolute motion and velocity cannot be found. He also stated in his theory that uniform motion could only be detected near the speed of light.  Einstein's theory of Relativity explains that quantities like time and distance are not absolute, but rather relative. It has been proven through science that Theory of Relativity outlined by Albert Einstein is the most reliable theory. It states that there is no perfect frame of reference. Maybe in the future, we will be able to calculate and find a law that explains physics and its motion in the universe.

Work Sighted: Lightman, Alan. "Relativity and the Cosmos." Pbs.org. June 2005. PBS. 27 Jan. 2009 . This website is a good source for information for a few reasons. It is exact with its explanation of the theory of relativity. It doesn’t show any opinion at all. It is also monitored by PBS which is also credible. Lastly, the writer himself studies, teaches, and writes about physics, so his information also has to be correct. Stern, David P. "The Theory of Relativity." Nasa.gov. 20 May 2008. NASA. 27 Jan. 2009 .  <span style="font-size: 12pt; line-height: 115%; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-theme-font: minor-latin;">This last web article was also very helpful because of the information it gave. Like the others, this article is just straight facts with none of the writer’s opinions. The information is legitimate for two reasons. One is that the information is monitored by NASA. The second reason is that the writer has a doctors degree in physics. "Theoretical Basis for Special Relativity." Slac.stanford.edu. 31 Oct. 2008. Stanford University. 27 Jan. 2009 <http://www2.slac.stanford.edu/vvc/theory/relativity.html>. <span style="font-size: 12pt; line-height: 115%; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-theme-font: minor-latin;">This article was a big help in writing my wiki. It was writer by the scientists at SLAC Accelerator labs, so it is trustable. They are the chemists and physicists who understand the Theory of Relativity well enough to thoroughly explain it to their readers. This article is just facts and there is no bias in any of the information. That is why this article is a good one. <span style="font-size: 12pt; line-height: 115%; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-theme-font: minor-latin;">Gurman, Joseph B. "Solar Data Analysis Center." SDAC. Oct. 2002. NASA. 1 Feb. 2009<http://umbra.nascom.nasa.gov/>. I chose this picture because it shows a solar eclipse just like the one in Einstein’s experiment. <span style="font-size: 12pt; line-height: 115%; font-family: 'Times New Roman','serif';"> "Tesla Downunder." Feb. 2003. 1 Feb. 2009 <http://tesladownunder.com/>. I chose this picture because it shows what I imagine electromagnet effects would look like if they were visable. <span style="font-size: 12pt; font-family: 'Times New Roman','serif';">Edemariam, Aida. "Relativity for Dummies." Guardian.co.uk. 6 Jan. 2005. 27 Jan. 2009 <http://www.guardian.co.uk/education/2005/jan/06/science.highereducation>.

<span style="font-size: 12pt; line-height: 115%; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-theme-font: minor-latin;">"Simpler, Safer, Sooner?" Mytransponder.com. 1 Feb. 2009<http://blog.mytransponder.com/2008/07/secret-moon-roc.html>. I chose this picture because it was associated with NASA and I used NASA in my wiki. <span style="font-size: 12pt; font-family: 'Times New Roman','serif';"> <span style="font-size: 12pt; font-family: 'Times New Roman','serif';"> This article is a good simple explanation of Einstein's theory of relativity. It gives the definition and then continues by giving simple analogies to help explain the theory. Ir relates a person's motion in a boat to movement in the universe. When we are on a large criuse ship, without windows, we cant really tell weather or not we're moving in relation to the earth, but we could stand still and say that we wern't moving in relation to the boat. This expands to when we stand still onearth and think we aren't moving, but in reality, we are in relation to the universe. The point of this analogy is to help us understand that there is no perfect point of refrence for every scenario. The author gives this simple analogy that is true in all parts. The author reveals that he knows what he is talking about with this theory well enough to translate it into simpler terms. If that proof wasn't enough, the sight is also legitimate because the author is Deputy of the National Post in London. <span style="font-size: 12pt; font-family: 'Times New Roman','serif';"> <span style="font-size: 12pt; font-family: 'Times New Roman','serif';">Jones, Andrew. "Einstein's theory of general relativity." Aboutphysics.com. Jan. 2008. 27 Jan. 2009 <http://physics.about.com/od/relativisticmechanics/a/relativity_4.htm>. <span style="font-size: 12pt; font-family: 'Times New Roman','serif';">This Article is also a trustable source for this subject. This explanation of the Theory of Relativity is more complex with more information on the subject. The writer is also highly qualified to write this. He has been writing about physics for 17 years now and has a bachelor's degree in physics. He does a good job of explaining the Theory of Relativity.