In reference to light's bending.

Water in a pool is a medium, so is space in the universe: if a beam of light is set onto the surface of a pool, the beam of light looks to bend, so it does in any Solar eclipse: the light bend as an illusion as in a medium of water in a pool: Light doesn't bend; if light bend then it would run in a circle until it encounters itself at its point of origen creating an astronomical circumference that would engulf our known universe. At a given point of the waves existing in light itself, there would be one single wave that would be larger than the wave before and the wave after in order for light to deviate its route at which it moves forward; this difference in waves before or after would be repeated billion times billions repetition until it end up onto its first beginning ...well, then light is starting on its beginning which is its past (time travel at a different momentum but at the same space or circle).  The same would happen with the light focused on the surface of a pool if one would be inside the pool and the pool be infinite. That light bend is an illusion the same as in the pool.

 

Diameter of one wave of light, is constant at all waves of light in that light to have the same intensity, if its diameter increase, its intensity decreases in proportion to itself becoming each and in every increase in diameter, much feebler but staying lined up to the point where it divides into its radius, therefore, moving in a straight eternal line in its medium.