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According to the theory of relativity nothing can travel faster than the speed of light then how can the far parts of the universe can move away from us faster than the speed of light ?

According to the theory of relativity nothing can travel faster than the speed of light then how can the far parts of the universe can move away from us faster than the speed of light ?

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SAGAR SINGH - IIT DELHI
878 Points
13 years ago

Dear student,

Theory of Relativity – The Basics
Physicists usually dichotomize the Theory of Relativity into two parts.

  • The first is the Special Theory of Relativity, which essentially deals with the question of whether rest and motion are relative or absolute, and with the consequences of Einstein’s conjecture that they are relative.

  • The second is the General Theory of Relativity, which primarily applies to particles as they accelerate, particularly due to gravitation, and acts as a radical revision of Newton’s theory, predicting important new results for fast-moving and/or very massive bodies. The General Theory of Relativity correctly reproduces all validated predictions of Newton’s theory, but expands on our understanding of some of the key principles. Newtonian physics had previously hypothesised that gravity operated through empty space, but the theory lacked explanatory power as far as how the distance and mass of a given object could be transmitted through space. General relativity irons out this paradox, for it shows that objects continue to move in a straight line in space-time, but we observe the motion as acceleration because of the curved nature of space-time.
    •

 

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Sagar Singh

B.Tech, IIT Delhi

sagarsingh24.iitd@gmail.com

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