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Special Relativity Explained

Hello everyone! Have you ever heard about Special relativity?Its a remarkable theory published by the well known physicist Albert Einstein.I am sure you must have heard of him. Now lets know a bit more about special relativity.





Special Relativity is the  accepted and  well-confirmed physical theory regarding the relationship between space and time or space-time.






In Albert Einstein's original pedagogical treatment, it is based on two postulates.They are:



1.the laws of physics are invariant in all inertial systems / non-accelerating frames of reference.



2.the speed of light in a vacuum is the same for everyone, regardless of the motion of the source of the light.




Special relativity is the most accurate model of motion at any speed when gravitational effects are negligible.




But still, the Newtonian mechanics model is valid as a simple and high accuracy approximation at low velocities relative to the speed of light(c).




Special relativity implies a wide range of consequences




These consequences have been experimentally verified, including:


1)length contraction


2)time dilation


3)relativistic mass


4)mass–energy equivalence


5)a universal speed limit


6)the speed of causality and


7)relativity of simultaneity.






It has replaced the conventional notion of an absolute universal time with the notion of a kind of time that is dependent on reference frame and spatial position.




Rather than an invariant time interval between two events, there is an invariant space-time interval.






Combined with other laws of physics, the two postulates of special relativity actually predict the equivalence of mass and energy.



This is expressed in the mass – energy equivalence formula E = mc²

c stands for the speed of light in a vacuum.

e stands for  energy.

m stands for mass.

The special theory of relativity was developed by Albert Einstein in 1905.
It forms part of the basis of modern physics.


The theory of special relativity explains how space and time are linked for objects that are moving at a consistent speed in a straight line.This is space-time.



One of the most famous aspects of special relativity concerns objects moving at the speed of light, which can also be referred to as 'c' (celeritas).



As an object slowly reaches close to the speed of light, its mass becomes infinite. So, it is unable to go any faster than light travels.



This cosmic speed limit has been a subject of much discussion in physics, and even in science fiction, as people think about how to travel across vast distances.



The Special Theory of Relativity tells us that a moving object measures shorter in its direction of motion as its velocity increases until, at the speed of light, it disappears.


The theory also tells us that moving clocks run more slowly as their velocity increases until, at the speed of light, they stop running altogether.


In fact, it also tells us that the mass of a moving object measures more as its velocity increases until, at the speed of light, it becomes infinite.



The Special Theory of Relativity was published by Albert Einstein.

                                         
                                                                        Source of the image

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