Time dilation in Space-time due to mass

 Theory of relativity and interrelation between space time and mass in space-time continuum 

Many of us know space and time to be different entities, but it is not our fault as we are only exposed to classical mechanics in our daily life.

In classical mechanics, Euclidean space is used, instead of space-time. In classical mechanics, time is considered to be universal and constant being independent of all possible variables. This is true if the observer and the event are in the same frame and all these things are happening on the surface of earth.

In contexts related to relative theory, value of time varies according to the velocity of the observer or mass of the body to which time is associated.

In space-time concept, time is considered to be the fourth dimension.

If we have to define a point in the space then we need three common dimensions which are horizontal, vertical and depth (x, y, and z) and another imaginary dimension time. If there is no matter at a particular point in the space then this fourth dimension doesn’t need to be considered as time is same for all the points which doesn’t fall under the space-time of any matter. Here matter can be anything that occupies space and have some mass. If there is a matter at a particular point then the three already known dimensions define the position of the point in the space and the fourth imaginary dimension defines the flow of time at that point.

In this case time flows slowly at the center of gravity of the body and the reduction in the flow of time is dependent on the mass of the body. The phenomenon explained above is called Time Dilation due to mass of the body.

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Related Articles: Time dilation, White hole
Credits: Image source- Google Images

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