# The Naked Scientists Forum

### Author Topic: What is the mass of a photon?  (Read 20450 times)

#### ghh

• Jr. Member
• Posts: 48
##### Re: What is the mass of a photon?
« Reply #50 on: 19/11/2006 22:09:11 »
An interesting discussion.
However "Planck length" and "Planck time" are derived from the "minimum measurement possible" based on the Schwartzchild radius of a non rotating black hole. This has been overtaken by other black hole models, so I should not place too much reliance on these definitions, other than to say there is a finite limit on our ability to measure very small quantities.
There is also a curious but prevalent interpretation on the "energy" of a photon.
"Energy" is a time-dependent measure as in E = hf. where f = frequency. thus the "energy" is the number of "h" measures per the entirely anthropomorhic measure of "1 second".
thus a "photon" of wavelength λ will have an "energy" of h λ/c where λ is the number of wavelengths at 3x10^6 m/sec.
For a full explanation please look at my thread "One particle...." under "new theories"
Graham

#### sia

• Jr. Member
• Posts: 12
##### Re: What is the mass of a photon?
« Reply #51 on: 04/12/2006 09:11:34 »
... why does everyone say a photon has no rest mass, considering there is no such thing as a rest photon?

The photon concept is a misinterpretation of measurements of wavelengths from blackbody radiation.
Planck compared different wavelengths within the optical spectrum and theirs respective temperatures.

Max Planck found that there was a small fractional difference of 6.6*10^-34 between the waveunits.
This implies that a wave-unit increases its length proportional to the distance it moves.
It implies that when a electrodynamic wave has moved one wave-length it has increased its length by 6.6*10^-34.

Planck made the mistake to tranforme by the formula  f=c/λ the measured wavelengths to frequencies, as a help to interpret the measured temperatures as energy per time-unit.

Max Planck didn't understand his interpretation but called it quanta and gav it the dimension Js, which is not compatible with the classical thermodynamics such as Wilhelm Wien distribution law and Stefan-Boltzmanns radiation law.

By my discovery of the entropy displacement law you can combine them to a unified physics.

Ingvar

#### The Naked Scientists Forum

##### Re: What is the mass of a photon?
« Reply #51 on: 04/12/2006 09:11:34 »