Group: sci.physics.particle
From: =?UTF-8?Q?Jeff=E2=96=B2Relf?=
Date: Saturday, February 23, 2008 3:26 AM
Subject: Did Einstein explicitly say: =?UTF-8?Q?=E2=80=9C?= Photons have no rest mass. =?UTF-8?Q?=E2=80=9D?= ?

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.