Re: massless or massive photon?

On Jul 11, 9:28 am, Dono <sa...@xxxxxxxxxxx> wrote:

[...]

Besides, it is not the "energy", imbecile, it is the relativistic
Lagrangian (L). Your Alzheimer is progressing at an alarming pace, old
fart.

That's what makes this fun. That is, of course, on top of Pete
responding despite me being killfiled and their general shrillness
about a trivial topic. But that's just gravy.

I don't recall either of us explicitly claiming that this is the
energy. I only ever claimed that it was conserved - if I said it was
_the_ energy I was mistaken.

The actual energy of motion is constructed explicitly through g_uv p^u
p^v as the energy relevant to kinematics is a part of the four-
momentum.

I wonder what Juan is going to say when he reads my blurb about the
choice of sign for the Lagrangian being based on wishing the v << c
expansion to match Newton.
.

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