hi, MigL(and others),
I Usually B.S. my way through the things I don't know until I can gain a better understanding. but I am having a fun time learning. but to what I am trying to do is give a basic explanation of what wave-particle duality is/define photon/ explain that a photon has relativistic mass(i.e. energy) and not physical mass.
P.S. thanks for the videos and the PBS one remind me of what my dad uses to teach me stuff(haven't paid much attention to it though cause idk.)
P.P.S wow lots of response I am flattered ty.