I am expressing my views through Great SOCIAL MEDIA as each of my article will come to the welfare of society if at all, it necessitates any of its demand. Preface In childhood, during study different types of foolish question come in mind like if the unit of the respected scientists ‘Einstein’ equation, e=mc ^2 the unit of ‘e’ is changed then, ‘m’ also will be changed . Now if c ^2 unit is changed then, why the mass, energy will not be changed? Who is the exponent of element? Why iron should not be changed into copper? Why natu...