Part 4. Pieces of evidence.

Reconsidering the basics of the physic.

Part 4. Pieces of evidence.

In this video, we are going to determine what pieces of evidence do we have to prove the existence of the versatile medium for electromagnetic waves. Moreover, how can we prove that such a medium is nothing else than the space-time itself? Do I have to remind you that the speed of light is being considered as a constant at the moment? However, is the light speed itself indeed an unchangeable constant, or a variable value, in direct dependence on the conditions of its medium? Is there any pieces of any evidence or even any of examples, directly or indirectly indicating that the speed of light as a such is not a constant but may vary in the first place? Let’s find it out.