how the einstein theory of relativity can challanged General relativity deals with gravitational force and the equivalence principle, which states that an object at rest on Earth is actually moving at the same speed as an object in space travelling at the speed of Earth’s rotation. Einstein stated that gravity is actually not a force, as was previously believed, but instead a four-dimensional property of space and time, or space-time, which is curved. General relativity carries several consequences: 1.Clocks run slower in fields of lower gravity. 2.Light bends in the presence of gravity. 3.A planet’s orbit is faster as it approaches the sun, and slows as it moves farther away. 4.A rotating mass actually drags space-time around itself. 5.The universe is expanding, with the farthest parts moving faster than the speed of light. Special relativity deals with the structure of space-time. It states that the speed of light in a vacuum is the same for everyone, regardless of their motion or the motion of the light’s source, and that the laws of physics are the same for all people moving at the same speed. Special relativity, like general relativity carries several physical consequences: 1.Two events that appear simultaneous to one person on Earth, may appear non- simultaneous to another observer on Earth. 2.Time moves more slowly at faster speeds. 3.Objects become shorter at a faster speed, relative to the direction they’re moving away from an observer. In other words, if you were lying down and moving at the speed of light, you would get shorter. If you were standing up, you would get thinner. 4.Energy and mass are equivalent. This is the famous equation E = mc2 5.It is impossible to travel faster than the speed of light in a vacuum. The theory of relativity has become big news as a 12 year old mathematical genius named Jacob Barnett posed several questions that seem to identify “errors” in the theory. ADVERTISEMENT ADVERTISEMENT Home › Categories › SciTech › Science › Physics › Theory of Relativity ABOUT THEORY OF RELATIVIT
Posted on: Sat, 01 Jun 2013 07:35:39 +0000
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