### Interrelation among Theory of Relativity, Vacuum & Absolute Space-Time Theory

#### Abstract

In fluid mechanics, there exists a transformation from a compressible fluid to an incompressible one. Applying this transformation to the Galilean transformation, one can derive the Lorentz transformation. In so doing, these transformations demonstrate the links among the vacuum, absolute space-time theory and relativity. It turns out that the vacuum (ether) when treated as a compressible superfluid can serve as the basis of relativity. The theory of relativity makes up the shortcoming of absolute space-time theory in quantity, while the basis and limitations of relativity can be shown from absolute space-time theory. Relativistic and absolute space-time theories are two different space-time theories but there are certain relationships and complementarities between them.