Originally Posted By: newton
What is it photon ?

Energy portion ? or mass portion ?

Again the right question it is the energy portion and it gains it's mass because of it's energy.

You probably also worked out the answer to my question above now how real it is depends upon how you look at things ... is a rainbow real or not laugh
I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.