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Difference Between General Relativity and Special Relativity

einsteinGeneral Relativity vs Special Relativity

The theory of relativity is not as complicated as we believe. Theory of relativity proved to be ground breaking discovery in the field of physics. It is simple science which we use in our everyday experience. Einsteins in 1905 with his famous paper On the Electrodynamics of Moving Bodies explains his Special Relativity Theory. Special relativity (SR) theory deals with things that are moving near or at the speed of light. The new concept that is derived from relativity is based on the fact that laws of physics are the same in all inertial that is., non accelerating reference frames. And the speed of light in the free space is constant.

According to SR space and time are not separate concepts. If we move an object relative to another, the time is a mixture of space and time. This means, among other events is seen as simultaneous for one observer may not be simultaneous as seen by another observer moving relative to the first.

Special relativity explains how the law of science shall be the same no matter where they are located or in which direction it is moving, when there is absence of gravitation. It would be easy to tackle relativity in terms of space-time coordinate. In special relativity, we deal only with flat space-time.

General relativity theory published in 1916 is based on the same theory of special relativity. The distinction is that general theory explains the force of gravity in terms of a curving four-dimensional space-time. According to Einstein the forces of acceleration and gravity are equivalent. His publication also states that all physical laws can be formulated so as to be valid for any observer, regardless of the observer’s motion.

According to this theory nothing can travel faster than the speed of light, however the gravitational attraction between two different objects would be stronger when they are closer to each other. If we move farther away or closer together the change in the attraction is instantaneous. This theory also considers a much wider case of space-times and talks about that the laws of physics are the same in all reference frames.

This theory allows us to work on gravity as it allows us to define a local Lorentz frame along with the equivalence principle as well as the principle of general relativity.
Einstein’s equation elaborates that matter tells space-time how to curve, and space-time tells matter how to move. This theory has been confirmed by a variety of experiments. It also calls for the existence of such things as black holes and gravitational waves.

Summary
1. In special relativity gravity we cannot treat gravity in. It also declares that space and time are not separate concepts, but intertwined.
2. On the other hand general relativity explains that gravity is actually a curvature in the space-time caused by matter, like earth.


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3 Comments

  1. Dear Dr….,

    Please to visit in my web site ‘ http://www.timeflow.org ‘ And Please can you test my ‘Time Flow’ Formula? Many Thanks.

    Sincerely

    Salih Kırcalar

  2. Dear Dr….,

    Very small free roaming particles lifetime very short.[free photons, free notron, free proton,free
    electron ,vs].And their lifetime is its energy Mc2. Protons are observed to be stable and their theoretical minimum half-life is 1×10’36 years.Grand unified theories generally predict. That proton
    decay should take place, although experiments so far have only resulted in a lower limit 10’35 years for proton’s lifetime. I see that. The earth lifetime is its Mc’2 energy. When this is calculated
    the lifetime of earth.

    Earth Mass= 5.97×10’24 kg. the lifetime 1 kg of mass in space is 2851927903,26 years.

    Earth Lifetime is 1.7×10’34 years. I think that, this is a very interesting result.

    Best regarts
    Salih Kırcalar

  3. Thank you very much.However request you to elaborate in table form.

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