Is the mass of a photon stationary in space?

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Discussion Overview

The discussion centers around the concept of whether the mass of a photon can be considered stationary in space, exploring implications for energy-mass equivalency and related theories. Participants reference various ideas and theories, including general relativity and the nature of photons.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • One participant suggests that the mass of a photon could be viewed as a photon moving at light speed but stationary in space, relating this to energy-mass equivalency.
  • Another participant challenges this idea, stating it appears nonsensical and emphasizes that photons cannot be stationary in space.
  • A different participant points out the relationship between energy, mass, and momentum, stating that for a photon, the mass is zero, leading to the equation E = pc.
  • Some participants reference a historical concept called a Geon, proposed by Wheeler, which involves light traveling in a circle held together by its own gravitational field energy.

Areas of Agreement / Disagreement

Participants express disagreement regarding the notion of photons being stationary in space, with some firmly rejecting the idea while others explore related theoretical concepts. The discussion remains unresolved with competing views on the nature of photons and mass.

Contextual Notes

Participants note limitations in discussing the topic due to the lack of specific references to the original article mentioned. There are also unresolved assumptions regarding the definitions of mass and energy in the context of photons.

azcowboy702
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I was reading a recent physics article on the google home page that stated that the current theory of mass is that it is a photon moving at light speed but stationary in space. My analogy of this was like a photon moving in a circle but it is not moving. I wish I could sight the article but can't. Do you know if this is true? This would then explain the energy mass equivalency of E=mC^2 or m=E/C^2. if you know of any articles written about this could you please put a link to them in the answer. thanks.
 
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azcowboy702 said:
I was reading a recent physics article on the google home page
Please give a specific reference. We can't discuss something we can't even read.

azcowboy702 said:
the current theory of mass is that it is a photon moving at light speed but stationary in space.
This looks like nonsense.
 
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azcowboy702 said:
I was reading a recent physics article on the google home page...
I'd be more than a bit wary, considering the source!

Also: The general relationship is
##E^2 = (mc^2)^2 + (pc)^2##

Since a photon carries momentum you couldn't make the correct mass equivalence, even if it applied, which it doesn't. For a photon, m = 0, leading to E = pc.

-Dan
 
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azcowboy702 said:
I was reading a recent physics article on the google home page that stated that the current theory of mass is that it is a photon moving at light speed but stationary in space. My analogy of this was like a photon moving in a circle but it is not moving. I wish I could sight the article but can't. Do you know if this is true? This would then explain the energy mass equivalency of E=mC^2 or m=E/C^2. if you know of any articles written about this could you please put a link to them in the answer. thanks.
Photons can't be stationary in space.
 
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jedishrfu said:
There was a GR idea years ago by Wheeler called a Geon which could be light traveling in a circle Held together by its own gravitational field energy.

https://en.wikipedia.org/wiki/Geon_(physics)
Either light or gravitational radiation.
 
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