Richard Clark wrote:

In essence, these instruments indicate,
not measure.

A description which applies beautifully to power meters as well, don't
you agree? ;-)


No. Power meters to even uncommonly high accuracy still conform to
Newtonian mechanics.

So it is because of Newtonian mechanics that an RF power meter is
actually measuring power rather than indicating power. What is the
value gained by this strain on credulity?

The coy context of the thread was measuring the mass of a Photon.
Absolutely no SI Units have been named or any quantitative values
offered (the rather standard omission from claims made here).
However, feel free to introduce your own side thread's goal or even offer a
guess (your own quatitative value for the mass).

I'd like to offer m = E/c^2 as a guess.


The photo-electron appears to even depart from that.

I've often wondered how one might go about recognizing a
photo-electron out of a group of other, less prominent electrons? :-)

73, ac6xg