On Feb 23, 4:26 am, Jeff$B"%(BRelf wrote:
So ( to recap ) you don't know if Einstein explicitly said
something like: " Photons have no rest mass. ".
I can't believe he was silent on this matter.

You told me:
" If I come across a place where Einstein indicates that
light has zero rest mass ( aka proper mass ) [ or not ]
then I'll let you know. ".

Thanks, that would be grand ! I love your non-judgmental attitude.

Thanks Jeff. I appreciate that. I see no reason for being judgemental
at all. It serves no purpose that I can see. It only does more to make
people feel less free to askk questions, most of which are very
legitimate as this one is.

Best wishes

Pete