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Classical Physics and General Relativity, both the theories are incompatible with small-scale universe, that is, both the theories are not applicable on small particles. The scale where general relativity seems to predict some ‘strange’ things is below 10-9 meters.On the other hand, the special theory of relativity works well with particles. Actually, the tests conducted to prove special relativity had been done on very small scale.
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Relativity was developed by a famous German physicist, Albert Einstein. Some contributions of Hermann Minkowski, Hendrik Lorentz and Max Planck is also there.
Theory of Relativity comes in two different ‘versions’ – ‘Special Theory of Relativity’ and ‘General Theory of Relativity’ or simply special relativity or general relativity.
Space-time is a 4-dimensional structure, but we can’t actually even visualize a 4-dimensional space-time because we can’t see the dimension of time as our brain creates a 3-dimensional model of everything we see. So, we represent it with two dimensions, like a fabric.
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