> gmail.com> wrote in message
> news:d341bff3-d01a-453a-912e-9b6fad15ccf7@i20g2000prf.googlegroups.com...
>
> | Photons must have mass unless in state of rest or the magnetic would
> | not affect lights speed and we know this to be not true. And large
> | gravitational fields bend light because of their kinetic mass please
> | correct me if I am wrong
>
> Photons have _inertia_ when in motion.
> Can a photon ever be at rest?
> Has anyone detected a photon at rest?