Review of the Theory of Relativity (original) (raw)

2008, Journal of Applied Sciences …

This study is a review of the theory of relativity. Einstein devised the special theory of relativity in 1905. In special relativity Einstein kept some ideas in his subconscious mind which was very important for the modification of physics. Einstein mentioned in special relativity that the mass of a body increases with an increase of the motion of the body . In fact Einstein recognized acceleration instead of momentum unknowingly. This idea was not incorporated in special theory of relativity. Classical mechanics was founded on rectilinear principles of motion. But Einstein observed that space-time is curved and all motions are curved . Einstein had an attempt to establish the curvilinear principle in physics but he could not complete his works. In Time Dilation and Length Contraction Einstein developed some concepts with a number of anomalies. Actually time dilates and contracts due to the fluctuation of gravitational influence in different space-time. In principle of equivalence Einstein explained the gravitational and inertial mass are the same . But this explanation of principle of equivalence needs more elaboration. Body possesses definite shape, size and density but it can only express mass with the help of gravitation. Beyond the gravitational field body is unable to express mass. This idea is not incorporated with the theory of principle of equivalence. Einstein formulated the general theory of relativity in 1915 combining special relativity, accelerated frame, principle of equivalence and gravitational fields. Einstein put forth three experiments for the proofs of the general theory of relativity. But the general theory which are based on assumptions beyond the principle of equivalence are not well substantiated .