B Debating the Validity of a Conversion Factor for Mass-Energy Equivalence

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γ = 1 / √(1 + v²/c² )

Someone posted above formula, claiming that this conversion factor can also be used to derive the mass-energy equation. Therefore, it's the second formula in the world to do so. Furthermore, the atomic bomb fits this conversion model even better.

I think this is incorrect. That formula is useless.

I'd appreciate your expert opinions.
 
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If there were a minus not a plus in the denominator it would be the Lorentz gamma factor, which is a part of SR and arguably a part of the derivation of things like ##E=mc^2## (or ##E=\gamma mc^2##, which is a more general formula including kinetic energy).

As written, it's no part of relativity.
 
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"Someone posted" is not a good start to a thread, as without the source we have no way of knowing whether you've misunderstood something or the source is just plain wrong.
 
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suoercat said:
Furthermore, the atomic bomb fits this conversion model even better.
If someone is claiming that ##\gamma=\frac{1}{\sqrt{1+(v^2/c^2)}}## can be used to better model something than ##\gamma=\frac{1}{\sqrt{1-(v^2/c^2)}}## that sounds to me like a crackpot idea.

The latter is simply a definition used throughout relativity as part of the modeling process. It's mainstream. The former is unheard of, so if someone is claiming it's a discovery of an idea missed by mainstream physics they are deluded.
 
suoercat said:
Furthermore, the atomic bomb fits this conversion model even better.

Nonsense.

Besides, gamm favtor with + sign would give wrong non-relativistic limit.
 
Nugatory said:
"Someone posted" is not a good start to a thread, as without the source we have no way of knowing whether you've misunderstood something or the source is just plain wrong.
Screenshot_20250807_133516_Chrome.webp
You're right.
 
suoercat said:
You're right.
Your image is mostly illegible and does not help. Post a link to the paper please. Also, it does not appear to be published in a peer-reviewed journal, which will be a problem here at PF.
 
A google search turns up a date of Jan 14, 2008, but the link to the paper (http://www.paper.edu.cn) is broken.
 
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berkeman said:
Your image is mostly illegible and does not help.
With a bit of magnification I was able to read every word. It's the abstract, not the paper itself. It doesn't appear to be worthy of publication. I could comment more, but I don't know if it's worth the time and effort to do so.
 
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  • #10
berkeman said:
Your image is mostly illegible and does not help. Post a link to the paper please. Also, it does not appear to be published in a peer-reviewed journal, which will be a problem here at PF.
1754608515239_5f0306f2fdb92c0075e049baa0c0d650_2_0_art.webp

Sorry. The paper is in Chinese. Only the Abstract is in English.
 
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Thank you for the much clearer image. Can you post a link, or is the link old and broken as @Herman Trivilino reports?
 
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suoercat said:
Here you are. The link works. Just verified. In chinese though.

https://www.docin.com/touch_new/preview_new.do?id=195568547
I'm still waiting on Google to translate the Chinese version to English so that I can review it, but so far it appears to be nonsense that is self-published. That does not meet our PF rules criteria of peer-review in the Clarivate list of acceptable journals. Thread is closed for review of the reference.
 
  • #14
It is nonsense. The thread can remain closed.
 
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