between photons and a break away from my other questions?

Question

if it were possible to get inside a beam of light ,in between photons in that little dark area we were talking about what would we see if we looked forwards in the direction of the firing protons. we no if i proton is fired of in the direction of our eye we will see light as light travels forwards my question in simplified terms is" what does the rear of a photon look like , surely it does not emmit light? as light goes forward, because if it does then this in itself prooves that light relects of light and it would then hit the photon behind it and relect forward again giving the illusion on infinity like two mirrors proped facing each other the relections would go on for ever and this is the reason that it doesnt bounce out the sides but stayr in a beam because it only reflects perfectly in the opposit direction that it is fired thus containing itself and kept on its trajectory fowards, when in actual fact they move backwards just as far as forwards but with a forwards momentum

Answer 1

Photons and protons are two different things. What would it look like if you could "ride" on a beam of light, or what would you see if you rode on a beam of light was the question Einstein asked himself at the turn of the last century. The answers he came up with were the basis for his Paper: " On the electrodynamics of moving bodies", his Theory of Relativity and his Ideas about the nature of Light itself. Read some Einstein books and you will deepen your understanding of this.