Re: The HOAX of E=mc?. Documented history since 1898.

rhertz <hertz778@gmail.com> wrote:

That there was a relationship between energy and mass was suspected
since the last years of XIX century.
 
By 1899, Poincaré derived such a relationship by using a thought
experiment with a "light cannon" and its recoil, once it shot a pulse of
light. By equating the energy of the light pulse and the recoil of such
a cannon, it lead him to attribute to electromagnetic radiation a mass
equal to E/c? where E is the total energy of the radiation.
 
https://www.bjp-bg.com/papers/bjp2019_2_081-093.pdf
 
But Thomson, Lorentz, Heaviside and many others were closing the
approach to this concept by using measurements of the recently
discovered electron.
 
This was known by 1900 (values in c.g.s. system):
 
1. (Lorentz and others): Energy of an electron at rest E = e?/R
 
2. Charge e (Planck 1900): e = 4.69E-10 esu (g^1/2 cm^3/2 s^-1)
 
3. Ratio e/m (Thomson 1900): e/m = 6.32766E+17 esu/g
 
   OR  m/e = 1.58036E-18 g/esu
 
4. Mass of electron (1900): m = (m/e) e = 7.4119E-28 g
 
5. Radius of an electron (1907, Rutherford, others): R = 1.11E-14 cm
 
6. Energy stored in an electron (1907): E = 1.976E-05 erg or g.cm?/s?

[snip nonsense about relativity based on your misconceptions]

Your complete cluelessness wrt physics and the history of it
is coming through again.
In 1900, Lorentz, Thomson, and friends didn't have an idea
of what the electron mass or charge might be.
All they had, from Thomson's measurements of 1897,
was the e/m ratio.
The electron mass was completey unknown until Millikan, (in 1909)
measured the electron charge.
The smallness of the electron mass came as a complete surprise.

Lorentz' 'electrons' like in his 'Theory of electrons'
have nothing to do with actual electrons.
That's why Lorentz and Einstein couldn't and didn't discuss
the electron mass at all.
They were not predicting the mass,
they were predicting (correctly of course)
how the mass should vary with velocity,
(in the terms of 1900)

Jan