Now let’s move to one of my another best theory. Actually this theory is mainly based upon the theoretical explanation of elasticity phenomenon in only liquid state of matter. However, it is also displayed by author to know reason behind the volume contraction and mass variation of a liquid body at the speed of light. Now here this thing is mentioned clearly that rotational speed of the liquid body should be reached at the speed of light because of particle’s maximum contraction occur on this step. In this theory, almost these all data sets about this were collected by observing the nature (mercury). Therefore, it might be said that is a duplicate copy of the mercury. Finally it is concluded that one can give semi-fixed shape and semi-fixed volume permanently to the liquid (water) like mercury without putting it into any container. However, it is also concluded that imaginary pressure is main reason behind the volume contraction and mass variation of a liquid body at the speed of light.