🚀 go-pugleaf

$$                    Thermal mass transfer.
> >> I know they say a photon **doesn't** have a [REST] mass.
>           Tom Roberts wrote: -=-SNiP-=- -=- eV/c^2. -=-

$$           The GUESS iSS test REST mass is, eM/c^2.

> In SR [& GR], they have changed the meaning of the word, 'mass.'

$$ Conspiring with SOME economically-associated collaborates, etc.

> [The GR] Mass no longer means mass, as it is used in all other
> sciences.  In SR [and also GR], they today only allow the word
> 'mass' to mean 'rest mass.'  Those in SR [and GR] are too weak
> to use mass the way everyone [General Science] else uses this
> word [mass]. 
 -=-
>  So a photon, never being at rest, still has to have mass, as
> it [GENERAL mass] is defined in all other [SI General] sciences.
 -=-
> Therefore, a photon is a real particle of [GENERAL SI] mass, as
> [General Scientists and many many (Non-GR)] others would say it.
>
> g...@hotmail.com wrote:
> >> But do we know the amount of energy a single photon can
> >> produce [as ABSORBED by a detector] and then use E=mc^2
> >> thus [the EQUiVALENT mass] m = E/c^2 [as ABSORBED mass.] -=-

$$               THERMAL mass transfer (radiation light).
$$      A photon EMiTTED with energy h*f, subs ..h*f/c^2, mass.
$$      A photon ABSORBED with energy h*f adds ..h*f/c^2, mass.

$$      Think of this as you would MARBLEs in your GARDEN HOSE.
$$      [ONE's Loss Marble is ANOTHER's gain ..and visa-versa].
$$      Newton's Cradle ..a desktop MODEL of Light Propagation.

$$                Fridge Magnet = Suction Cup equation.
$$      Think of a Regrigerator Magnet as a Fridge Suction Cup.
$$      Each must do WORK in OVERcoming friction, or FALL down. 
$$      Refrigerator Magnet = Fridge Suction Cups of Trembling.

$$      Hope this helps, ```Brian A M Stuckless, Ph.T (Tivity).

>         Tom [He between his error-bars] Roberts wrote: -=- 
> > E single photon has energy E=hv, where h is Planck's constant,
> > and v is the frequency [as MEASURED] of the [says Tom] source.

Re: is there a "theoretical" mass for a photon ???
Re: Newton's Cradle THERMAL mass transfer analogy.    End of POST.