The philosophical notion that the cosmos is filled by a superfine gas, called Aether, originates from antiquity. Its mechanical version in classical physics was introduced by Christian Huygens in order to explain the transmission of light via compression waves, analogous to the transmission of sound in air. In this form Aether became the potential mediator of all mysterious 'action at a distance forces' such as gravity, magnetism and electricity. In the nineteenth century, the task of science seemed to be designing suitable fluid dynamical models utilizing Aether to explain each of those mysterious forces. Faraday and Maxwell nearly concluded this task with respect to the mysteries of magnetism and electricity. -- Nevertheless, one attempt to explain the polarization of light required the transverse oscillation of the transmitting medium, which could only be possible in a solid substance. This diversity in the models of Aether became a crucial problem in theoretical physics. Finally, at the turn of the twentieth century the Special Theory of Relativity discarded the Aether altogether.
Aethro-Kinematics renders an alternate mechanical solution for the polarization of light. Thus, it reinstates Faraday and Maxwell's gaseous model of the Aether and resumes the original task of exploring all 'action at a distance forces' as fluid dynamical behavior of the all-pervading Aether. -- In Aethro-Kinematics, Aether is taken as an all-pervading gas at an ultra-microscopic order of magnitude. The constituents of this medium, the 'Aethrons', are in constant random motion with perfectly elastic collisions, analogous to the atoms of an ideal gas. -- This system obeys the simple laws of the Kinetic Theory of Gases.